Tarkam - SAstram - SP Gupta - Telugu Academy
Transcript of Tarkam - SAstram - SP Gupta - Telugu Academy
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t a
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tarkam-Saastriiya vidhaanam (Logic and Scientific Method)
English original-Telugu Translation : Sri M. Rajagopal Rao
Scrutiniser : Prof. N. Yadagiri Reddy, First Edition 1986,
PP viii-f 156.
Dr. S. P. Gupta, English Version
TELUGU AKADEMI, Hyderabad, Tefugu Version
First Edition, 1986
Copies : 1000
All rights whatsoever in this book are strictly reserved and
no portion of it may be reproduced by any process for any
purpose without the written permission of the copyright
owners.
This book is the Telugu Translation of the original English
book entitled "Logic and Scientific Method" The Transla-
tion Rights were obtained by the Telugu Akadmi from the
original author.
Price : Rs. 4-50
Printed in India
atVani Press, Lakdikapool, Hyderabad-500 004.
Andhra Pradesh
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(text-books) s$i;>c& |rto$eo (reading material)
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L *
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11
I. sS^DS'a^ S?, sS&d& itfo^eo (original text-books and
reading material)
.n iiol ^,
O.
3. "S v^-off'olj^ sSTSs ^ aSj'eo (monographs)
12
Sjc3SSbo. ^CP q58so-&
21 vofir* ^CP^J 300
iQenetl atucly) r?l &a*o^ac> saOD^dfio (optional or elective)
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Ill
(extensive study) 3caaotfo2> & a "
es
^^a e^o oL
'S)^b I ^L_
SS SeaciSo^o^ooL
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iv
^ sr
Se^eo,
,
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2. sScyeo,
3.
10.
13-30
31-48
4962
6S.-69
70-90
91-106
107-121
122-138
189-155
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(J
?Soao$S$?$;\ &*$
5o), ^P
(implications)
o.
(property), 250"^
(intelligenice)
e
Qotfn
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. [ofi
Sfif8
a.S'
, SS^^- (bed)
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(follows)
&aarS &^6o^D w^
(function) es^sS^^
(Logos) es^^Al~ sS^o ,(i)gsSt ^^o (Semantics|
>Qc8$ r,&o t i^sSpo (substance), ^p^ (worcjl^^ i a) ig
(ii) 3^S^ tftf\ (reasoned discourse), ,&
(method)
(Selentific method)
(method of Secentific inference),
3)S)rv ^S
60 SSJ CO C3 oJ U. oj
'
esS) Stf<?aot3&>. i^^c&'o^ (Concepts
Q.
(range)
. ^3 S^cri e^S ^'o^o^^ (sensedata"
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(symbols)
&o^cco.
(isolated)
'C'eao (classification). 53
eoKPA dbaoaodj^.
&otoo>. iSS^ B
?i
'XSisoa
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(formation sciences)
(positive science)
4s
. &aJ$*o'685b sScytf
.
"
)
(W.H.O)
' O ' Wi
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o ^}to^oS
( L 9'c & Language)
doDO i
a L
(conclusive)
(arithmatic) ^
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(diagrams) ^gpSeoCdrawingsJ^cr' &odp>cco. V
(circuit diagram)
(Symbolism)
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()
6co L L 6
tf?Sex>, ^tfpo&*s>to sJo"Stes a) a
"y es
X ^> Y.
(Functions of Language)
. a.S' SjQ
^i(J>
s
&v 'and/ 'some/ 'not/'every1
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1815-64)
(phrases)
sp
(assrtions) lxtf rf&&v<o Sfrdrr
^QOj?
a-S", ;S)2Sa'r38 S) ^<K2Do^doo^ TK> a.S' isS^ocSScpo) (theorem)
(relevent)
(George Boole
Q
,.J e>^
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a, "I
(Patrick Suppes)
(general set theory),
(exiomatic method)
^806' S) oSe"o3
(John God frey Saxe)
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10
There were six men of Hindustan
To learning much inclined,
Who went to see the elephant
(Though all of them were blind)
That each by observation
Might satisfy his mind
The first approached the elephant
And, happening to fall
Against his broad and sturdy side
At once began to bawl :
"God bless me I but the elephant
Is very like a wall".
The second, feeling at the tusk
Cried : ''Ho ! what have we here
So very round and smooth and sharp ?
To me 'tis mighty clear
This wonder of an elephant
Is very like a spear !"
The third approached the animal
And happening to take
The squirming trunk within his hands
Thus boldly up and spoke :
"I see", quotes he, "the elephant
Is very like a snake?"
The fourth reached out his eager hand
And felt about the knee
"That most this wonderous beast is like
Is miahtv olain" mintes hiv
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2.
"Tis clear enough that the elephant
Is very like a tree I"
The fifth, who chanced to touch the ear
Said : 'E' en the blindest man
Can tell what this resembles
Deny the fact who can,This marvel of an elephant
Is very like a fan !"
The sixth no sooner had begun
About the beast to grope,
Than seizing on the swinging tail
That fell within his scope
"I see", quotes he, "the elephant
Is very like a rope !"
And so these men of Hindustan
Disputed long and long,
Each in his opinion
Exceeding stiff and strong
For each was partly in the right
And all were in the wrong !
(Exercises)
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(iii)
4.
5.
ioifi?
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g'o=
s^8
efc&oS, es&Sfctf & otectiCo, tftfoootf.'
co o o
(sense-data) ^odpocx). es
o
& (pictorial language)^
SCPCP ?So'lfeg'5o^^ e& 'S' es^
tf;S^. escoi^ 63
. es Stforr
(basic block)
.
(other terms) a^S)o^^G o sSroDoa. -^e S)^cn ^)^o s!os sjos
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^53 Sj 'j^o'^^sS^o' (primitive term)
(denotation) ^ea^To (connotation)a Q - o
A-cfcr-oca. ^o^fil ^23 |SS#gdtfpe^aSasoA
(stetemnent)
) Q cp gj.
SpSSj^
'osQ
lido "^&6o (names)
(variables) & lid's* 3CO 3
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15g} J
CD
Ox
)
(geometry) ^ 'Oodb^1
(Point) ^ (line)
,^50^0
. fi9a
(Postultes)
(&o&ycco^-i &\ d'c^sx)' (variables) ^ fSon ^^ spt^s ^ (Proper
names)Tq^ f6o^ &o*eo (Comprise constauts)
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16
^>57>^soD(Common nouns),<bW&r>eo (Pronouns)
zeon rt>_8^>&.
& (equation)
fySK Y =O ^D fi(& d.
(es) ^|J^^e ^af SOCT>^. sp.S^^p^ ss^tf^o^ a. b, c
. a -
20;$O
dofi.
a =
x. y, Z' S^oof63 ^pcr sSn ^. (Do&^GiSoeb Fy^) H7>e3'sile,
(intensiew)B'
(essential)
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)
Jo^S (Distribution of a term)
I s$8fi spS'eotf* 'S^P^ex)1
69^ sSL. g e a
(propositions)
^o^e^oor
iSSS^T>
53o5'?eood3iica).L gf . o
17'
(Hama is an Indian)
^8<Dto
'
(it is
raining)
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18
^spggo3
t>&. a, "I .
^go53sco5fl
. e^ SPSioS* s5<? S.o&SosS&y 3<9 ,
J> IJ
. sr <0 ol
03-0 is
i
jL L.
5yS"i?o 53es15^d'ESoff8
isSci&'s^o^ ^o& v_ o
as Stfon* . .
B $ ^* & B E8
l)eoo^di. |Sj^ Pc6o, 53 ^o,'
(symbolism) wtfee
(if |were a king)
(Go ahead)
*^^*-BD eB ^odao C ^ ^
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) .19
}
L s
Q-^Dtfc&o (Proposition and judgment)S3
1. 59
D-(1)
(2)
^s "SO^CPO oi!3& 5^ iSSSs' syS'^o.|sSsn353^ (?o
q> L s^ a L si*
'
(conclusion) ^s5r6>. SSCOD^ esa >tfdo CTQtJ 3 oJ
(Project)'
5<>tf("(Lewis Carrol)"Alice in wonder
(Cury)o . .
". (Normal form)
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20
(1).S)8e$ja &tfo _ wotffib
(all Jg^otf&
(some\
(no )_9cS&P&CO ad
(esoeb\
(2).S^.C^S'^^D (Name of the subject)
(copule) c&, a^c8jg S"1) 'are' 'is'
(Name of the predicate)
yoD^o 3DSg"o33Co (some boys are intefli
gent) sj^^ s$a^es J^P^O ro^eo (some), a^dfioo SJ=OD
(boys) . ^ocSj^s^ 'are', s^cdi^ SO^OHP^ (intelligent).
e ^^ 5J^|o ^^03 es^SS^ Acfi. Boys
intelligent
" Some existing things are honest
0(3 atforp sSeg1
o
(i) . Honest people exist.
(ii). Some 'honest people' exists
(Hi). The class 'honest people' exists.
(fv). There are honest people.
(v). There are some honest people.
of discourse)
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"Some apples are not ripe" r>xreo esS^."some
apples/are/ not ripe fruit". aJ ';J_S'^-^ 8 S&d&xpsSr'Kh
ac&^a.sS\Goa^-;&y &a6'es& "No one needs paper
unless he is well educated"
&! SP^O SP&POD esS^
"No/
persons who are not well -educated/ are/ persons reading a
a paper"
0^ ctfK> : Some farmers always grumble at
the weather, whatever it may be"^ sys^SI sS^sSxPco es^.
(i)
"some/farmers/are/persons who always grumble at the
wheather, watever it may be"efo= (ii) some/persons/are/far-
mers who always grumble at the weather, whatever it may be.
e; ^g'5' S o(Classificationof propositions)
i^. [jS0^^,^ S)^d6^, S^d6o,
"to be
a
All people are honest:- <SwS *A'
: No people are honest.
6ooa. ssfi 'I '
J__0
: Some people are honest.
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: Some people are not honest.
, Sqpp^S' |&s* SPS'^CO. p<*3tfso&>j & l_ gjl J
Affirmo es3 ^pdo^j ' A '
'I' &
"
N E G e3 ^pdoar8^ ^o^ es^oS*
'''O'
(Modern classification) :
0(3
1., iOCospSS' [j^s
11 53oo (categorical proposition) :
. 'If/ 'unless'
: Rama is a student. Honesty is the best
policy. Commerce is a noble profession. There is no question
of getting a degree without exams.
(Hypohetical or conditional or
implicative proposition). ^ ^^a ?6Sp^ ,a^ ^^ .U 1
sf 6
.Ac3sio^jE8 : If the supply of an article increases the
price decreases.
^^a s^o^o^ (antecedent)
'S) (consequent) ^od^dS. 'A' jpoorf&ooo 'B f
N A t- B. g a cL
If A then B ^
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ap )
5T>5ipn>
&ocl A >-B
If A then B.
A - B &so"3 'A'
'A'
'A' fSotfal^ B KSo^SotfeSa w^o. A
^co:^ B
A does not yield - B f -A ^Oa -B $So^e^V - A > B
. f A, B ^j^o ^odSbo'S <a^A^ K)^ (not)\ a
a.)
<acco^ 'B' jSo^So^g"^ (e&o"&
'A',
c^)).'B' fGo^^Q s6'ra'Sr
*e->^^ e3ccoSi A ^O^CP^. 550^1
/ 2) CO
._ B .-+_ A. ^-cyoY^oSbfoot) A - B ?5soa -B -+ _ 'A
m'-A'-*-- B
3. c$o53j"B 83' [SSSfiJ* SP^gO (canjuvative proposition)
rvfj 'and'
A B'
AC B.
s) a .
gj>a o
A A B TY
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24
4. 2}o3j83^[J$&J3J SPS'go (Disjunctive proposition)
*
ai(3 3oi& isSBD<$r"\d5c> (alternative) i^L 6 ex-'
. Asa 'A or B' A v B rr> j
ftfcfc}(Either it will rain or not).
dBb^^. (Ram or Mohan may do
the work).
(inclusive).
(Either Rama or Mohan or both may do the work) 3 &c&$
5.
eo'ofir8
'either' 'or'
(equivalent proposition)
Sf
. A and B es^ "30^0
iS5as.^a?<>o SDsidSooer8 A KB eso"& If A then B
L B)^'- E)
. . B *A ^o^) If -B . then-A fo&*. o$$o
A, B eoSJQ'^O'O eso^o^orSsSs (implied)
'A if and only if B'
A is necessary and sufficient foj B' (Af^ B
o.1
) .A-*-. K.B & &1
-64 ISL.
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IsSSs19 SPS^CO 25L &
6. S^SPtfs loS&sr9 SPgo (General proposition)
(sets) >#<> &ocl p=^fe' oc?5 Kr'c5: r$p Jooeoctfo >
,3 cJ
men are honest)
sp e:
to^ &xia> (All scholars are honest). ^aisS"
A E, 1, i^S' L
x, (Flu is curable)
es
8
^o
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o a
(e) [S^bs'o^sSi ^>^ bj*eo&*co}.(AII triangles have three
sides)
(w)2+ 8 =6
(B) 2+X -6.
(^e)fe t>^'ao6 "(what is your name)
(&) ^[Xj^! (Be careful)
^>er>^b (I shall land on the moon)
is happy indeed)
(no, you are happy)
. ( l.am happy) ;
.
> o'|br?
(a,) ^BR^ 3 ^
(what a tragedy)
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27
(S?)
(wo)"> tffS
a,"i
2.
(i).
&o> sS^
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(ii)
.69026^ eo^>s^Li.
( Lewis Carrol, Alice in wonderland)
(iv) $$$
S ? ( Lewis Carrol, Alice in.
wonder/and)
(v) 5
8. sS^Ss' ST'S'??}^ 53^po ?5boa,7 8j
8 ol E) E8
4. pa isS^^oS* ?6o^Sot)^ isSSaV_
' ^ SP '0 ^J
^^ ! (Beware of the dogs)
& (you should behave)
(s}.Y ^0^ f6oj^o.<3* cDoc^^) iSo'sj) ( why don't you join the
cjebating, society? )
efl^oi^S' ! (May God protect you )
, CoQn ( crisp and delicious)
5. d<
(i) ^ea ^O..(H) .' ^f6ou"} a^o (iii)'
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6.
7.
8. o<2>
(i) Men .50 feet high do not exist.
(ii) No men 50 feet high exist.;
.,
(iii) 'The classmen 50 feet high does not exist.
(iv) There are not any men 50 feet high.
(v) There are no men 50 feet high.:
(Answer : No existing things are men 50 feet high.)
9,.
)
(i) Some men are not honest.
(ii) All but children are admitted.
(iii) No lawyer is artist.
(iv) God helps those who help themselves.
10. T' "Today is clear
"'R' It is r^iniAg today,"
'S'"
It is snowing today" andJ
Y' Yes,tferday it was
cloudy" &so^ oi
T (RAS) (Ans. If it is clear today, then it is
neither raining nor snowing.)
y A (C v R)
y -*-c'
vc
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30
11.' oS ^odfo
V_ Ef
(&\ Either it is raining or some has left the shower on.
(Answer : RvS)(t!3\ I will go either by bus or by train.
(si) Jay will work. Shyam or Ram will wait.
( Ans : J A (S v R ).
(&\ It is raining tonight, then either Jay must stay home
or he must take a taxi.
( Ans: R ( H v T ).
(&} If I am either tired or hungry, then I cannot study.
(&B\ Ram will sit and wait or he take a taxi and go.
(aa)I don't understand how he can ever finish, if hedoes'nt
begin.
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3o. (0
&?5o(Deduction)(ii)iistf&?$o (Induction) ^tfg 0*5^
n
^(theorem)
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2
(Facts)e) p ol
S$!d&
(generalisation)
5d'o^f6o<I>
(shorter)
SoS'o'S
fr& (infers). fi^
fibOL
83e
es Le^S^ cps2(ooSSo
53
^9- o
spD (comprehensive),
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(Inference)
99vv
&od>.
(Immediate inference) (2)
(Mediate inference).
8.2
f6Sj\)ifo esoj
Aodaoofi
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4
(Time) J5 8ot^d\ / _i
(Man is mortal) ss
j$g&" (Ram is mortal)
s$j<6|&" (Ram is mortal)
b"(Ram is man)
(Relation between
proportions)
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36
(Ram is related to Shyam)
iSL
. esodb^oCD L. si*
|J ^osje SJ'S'gOO (Independent
propositions)
(The sky is blue).
(Ram is an adult).
"30^0 i^Ss^ 5^5=00^ ^ r6^Q5
o?5D
eX) (Equivalent propositions)
P and Q
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30
ff P is true, Q is true
If P is false, Q is false
P and Q & ~3o&> loSSs^
If P is true Q is false
If P is false Q is true
O (Contradictory
propositions)
The grass is green
The grass is not green
esoo^ "The grass is green (P)
The grass is yellow(Q) 3
(green) ^oife ^^sSrfyp (yellow)
(If P is true, then Q is false)
(jf p |s false then
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97<
Q is undetermined)
yellow, brown, yellow-green
Scpj.es<3 (yellow) s'S&fcj,
sD -a^8sii3o
J. es S^on8 Q
a ^ ^ L
53sD
^ex> (Contrary propositions) escdjCa.
green J^ <^^ yellow n rvro
I S e53sB Pexr8
L sf a
fi* a.^'dS ?O^P ^)ODD &oa
'
oL
_ (Karol Poppa r)'-3&>
" v^o S^o^ofir8 ^a 69o*S |^j?o^a> ^-s SqpF3D^^
y L a ^ o-
"(empirical falsification) eor&
(J,5s=P ST'^^eJO (Sub-altern propositions)*
iS
If P is true Q is true
If P is false Q is undetermined
(sub-altenation)
^. Q P &sb*|?fcS&$. Jj'S jjo^2o)^ |SjSSJpo ?6oK>o5D ^iI
(SSji&o^ ^cp.^o /Ksi)K)o^Sjt5b;\. laSQ^pQ^oaowo^r8
If p is true then
Q is false. ^spe^oSr8V^CDD^ |f p is true then Q is alse trUe.
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38
"Soft5
S"gi?6 r$oe>o&io_e3o"& If p is false then Q is undeter
mined ~3O&<5S&J &~ S^ory &OO>O<5.
(Conversion)
eo? i
a e> I
"No student is conservative in social
matters"Si t)
"Nobody conservative in social matters is a
student" oS
^0(3. jS^B Soi^^C^ 69^.. SP
oLsye T-S/
)eo^eSb. &Dj*tfe3o 8,3" 'A'
S&*oO&>'_ "AH students are progressive",
ocy^o* "All progressive are stu-
dents" e>&&:><3. sjfi ^eSgorv^i. ^DiSb^o^oi^ progressive set
students set ^o"^ ^tf5>. eso^s"^ i^o^e^ Sc^o^eo progressive
F3 'some progressives are students' e3?6doo
&&roB"a- "Some students are
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89
progressive"
are students"
rtb>oi?6dx>rY> "Some progressives
-0' D &&*OOBO "Some students are
"Some progressives are not
. 5><*3
not progressive"
students'' ?$#<?&
Some mortals are not men' 1 5^|_sSSe'
? "Some men are not mortals"
(Obversion)
i
L
progressive"
are unprogressive
All students are
ter"ocT'sS, "No students
ESIa g S'
(negating) (contradicting)
e> e)
"students all
students"
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eb
s
: "|\|o students are progressive"
Students e^53^aar Progressive stf$j es5"o. Ib^S S)^
All students are unprogressive"
'all' ^eSjoo) (Srotoofi. gsSdlb 'g'
"Some students are progressive
go "some are not unprogressive"
c^o^fiooe8
"
'Progressive"
"Unprogressive''
not' J^SoSj drotooS. Sb^Sb^^ '0' o'S'oi
&{lbroDo. a-S-S- "Some students are not progre-
0-50. Some students are unprogre-ssive" ^
'not'
A, E
'all' 'no' o&^oiTo'crr'aoEj'oSi '9' tfSofir*
'
not'
-not'
(Opposition of propositions)
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41
eo
53= 5 ^98 ^
I So8^*53 oVoeso Soj^elboiS- 65^;
S5lsS13 53D a' l?O
A - All teachers are honest.
E - No teachers are honest.
I- Some teachers are honest.
0- Some teachers are not honest.
A-0 spg&^oft tf&S^o. ^o&gb"& |f A is true
is false, and if A is false, is true. ^ )$or\ f6<os5)ex) oXb
A-E ^[aj8Sbere^ (contraries) ^
A I As^l^&o, E O
^oST8
'all'
'some' aSp^^so^^. &n&'d'e3o 'Some like it
hot' 3 SSs-op^oer* 'some 1
a^ 'all' rtp&
'it is possible all like it hot'
Some teachers are honest
"All teachers are honest" l&'ao^sS^^b. ^ fS^gsSacso^ Son
teachers are not honest
'Some'
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53^0 fSy
. "Either.. .or"
'Some', 'all'
1-0
square of opposition
A
s
es
"both"^
a.S'dS
'
(traditional
tall "and" you are five feet tall"
you are six feet
e &^oa e o
'six feet' 'five feet' 8 &6o<,.
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(Equivalence of
compound propositions) :
"If there is a will there is way" &3 $*&$ \&<jf
535g^ &&gooas>. jfr^'SS'oS* 3r*o"gort jStfiete* (If there
is a will) ^S^o/K ?5^e^ (there is a way)
a
S'o. ''there Is a will and there is not away is not
true" 'there is a will and there is a way^
^)co^e5b. ^o5bs'o"^ 65^^.^ 'will' r?& 'way'
If there was a will then there was a way
'There is a will and there is not a way is not true'
f^o ,'there ... not true'
- J
Either
there is not a will or there is a way" "Either there is a
will or there is a way" ea^^SiS lb.eae<Sb. ^oiSb^o'Si
^&^ (Component) ]&&
e)g"if there is a will"
'there is a way', fo^go 5^^. esa
'If there is not a way, there is not a will'
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44
io<3 ftsodft&ccDfj S5tfc>o&o> i^as cps<>e) rt> 6 o>L a L tg 2)
"If a man falls in love, there are 2 possibilites
Either she loves him, or she does'nt
There are 2 possibilities
Either he continues to love her, or
He begins to hate her,
If he continues to love her
All the better.
If he begins to hate her,
There are 2 possibilities
Either he falls ill
Or he commits suicide
If he falls ill, all the better.
If he commits suicide
There are 2 possibilities
Either he goes to heaven, or
He goes to hell
If he goes to heaven,
All the better.
If he goes to hell then
that is still better-
Because he'll find
Most of his friends there I
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45
Either I shall go home or stay and read. I shall
not go home. Therefore I shall stay and read [H.S]
If I stay up late tonight, I will be dull tomorrow.
If I don't stay late then she will curse me. Therefore
either I will be dull tomorrow or she will not
curse me (S.D.C.)
Wages will increase only if there is inflation. If there
is inflation then the cost of living will increase.
Therefore, the cost of living will increase [W.I.C].
If I take the bus, then if the bus is late, I will miss
my appointment and start to feel down cast, then
I should not go home. If I dont get that job, then
I'll start to feel downcast and should go home.
Therefore, if I take the bus, then if the bus is late,
I will get that job (B,L,M,D,H,J).
3. i
L )
"Well, I 've often seen a cat without a smile/
thought Alice', but a smile without a cat? It's
the strangest thing lever saw in my life."
4.
'Then you should say what you mean* said the March
Hare.
"I do" Alice replied quickly "Well, I mean what
I say that's the same thina von
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46
"It Is not the same thing at all" said the Hatter.
"If it is true, then' 1 see what I eat" is the same
as, I eat.
"Or you might say' added the Mouse, who seemed
to be taking in his sleep/' that 'I breathe when
I sleep' is the same thing as' I sleep when I breathe"
''It is the some thing with you" said the Hatter
5.
fStf|S>eo3S T
[tantology]
[formula] [53*s5r>s9sS.&oS5*o'68& "If P, then P"
eicy "Pis [-P]
A^Sy* Oj
"Where shall I begin please" the White Rabbit asked.
"Begin at the "begining" the king said seriously,
"and go on until you come to the end : then stop!"
6. oj
'P' tftfoSS)eDc$ ^sSboiara-oS^ "P and-P
"If there is no meaning in it" said the king.
"we needn't try to find any. And yet, I seem to
some meaning in it"
S^ "There is no meaning in it. yet I see
in it" 3'a ^o'lsg'ori MA M (M <so"& meaning)
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47
7.[_c<3
'f a number is divisible by 2, it is even
It is even
Hence it is divisible by 2
If a number is divisible by 4, it is even
It is even
Hence, it is divisible by 4.
soe
Either he works or sleeps.
He is not working
Hence, he is sleeping.
"Some animals die young" r$#g&ox>cl \go&
(es)Most animals do not die young
ys)Most animals die old.
(eg)All animals die young
(^s)All animals die old
[&] Some of those dying young are animals.
[a*]Most of those dying old are not animals.
[am] Thirty percent of animals die young.
9. I 0(3L
[11
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[21
10. SSfiT8 s^^peftoosF1 &OCT5
2?;
/yThe king died, Long live the king i"?
11. 5f 6"^>_3^ "Being and Nothingness" ^)_g
S'o^T8
Sidi' 'zn^<^o :
CD L
J'\ have even lost the clear understanding of what
I am seeking, and yet I am engaged in the search for it.
I take and discover myself in the course of taking. But
what I take in my hands is something else than what I
wanted to take. I sense it and I suffer, but without being
capable of saying what I wanted to take ; for troubled as
I am, the very comprehension of my desire escapes me ;
I am like a dreamer 'who, waking, finds himself engagedin clenching his hands on the edge of the bed without
recalling the nightmare that induced his gesture"
C3*
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(syllogism).
T*>
(es)
|eD [
o<3
Soaex>
1. All theories are probable2. Science is a theory3. Science is probable,
'probable', 'science', >oex>.j, jj
?6SD Sa^ox^. jjj
(premises)
(conclusion)
'theories',
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50
All soldiers are strong.
All soldiers are brave.
Some strong men are brave.
'
"Soldiers//
jj"strong;" "brave"
"soldiers
>d
'theory' 'science' & s^g/theory'S
'science'sb'probable'
ftso 'science,
; 'theory'
^ss|o ^oS5^ 'strong/ brave,
. 'soldiers' sS5*sStfo. s s^^ s:^oS3b^g&s:(^o (middle
term). ^S ^cSprJ' orpoSj) ^"SS^^^o. S?5^^^o?T &
"^^^^" (mjnor term)/
(major term)
A is older than B;B is older than C; HenceA is older than C.
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51
uco
sufficient)
(1) 'A- (2) 'older than B' (3)
'B' (4) older than'C'. 'aatf
^O. 650^) SjS
_^ (necessary-
Sjc5coo&doo
All x are mAll m are y
Hence, Some x are y.
, m, y,
Qd
"All x are y"
some x are y".' &
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2.
3.
4.
5.
if all x are y ecuo^ some x must be y-
(Rules of validity) :
edo:)(rrp\ i
a L oi> L
(Rules of Quantity)
(Rules of Quality)
s
G ^*' "*"^) ,
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raSr '^ll soldiers7 ' SSKteitf &c&.
soldiers" p 3 sSc5o S
No worker is a capitalist.
No capitalist is poor.
"no worker is poor" 29^3
a
'no worker is a capitalist'
capitalist s^o'S -
-^^<^?i) worker go
No worker is a capitalist ;
A capitalist owns a factory ;
Hence, no worker owns a factory .
r'L
(1) No worker is a capitalist
A capitalist suffers from hyper-tension
Hence, No worker suffers from hyper-tSfltfeion.
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54 tftf^-o
(2) All soldiers can march ;
Some babies are not soldiers ;
Hence, some babies cannot march.
(General theor%
of syllogism),
1.9
?6o?) a.S'^.&iccc?! ^Sb^^o^O. ^ep^i (proof)
sne
&sO
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55
i
3)
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3.
'
S$d3rrpor?
es
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57.
8og"d3
f'2lL J
[1]
[2]
a
. es
^dSb. eoa*>S: ^s.
S^cJJo SSc3ay ^^jp
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58
esfi
1. All theories are probable;
Science is a theory;
Science is probable.
2. Some books are interesting.
Some books are bore.
No conclusion.
3. All booke are meant for reading.
Some books are bore.
Some (books) meant for reading are bore.
4. Some persons are brave.
No person is ten feet tall.
No conclusion.
^ 8
ooelb
j SSDofi ^_. ScSr ^ oti>d^ 039 ^
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59
2=?$
(Perception)/ S9&^?5o (inference),
(analogy), ^^ (verbal testimony).
o oqioo. 06
(The hill has fire).
(K^6^ (Because the hill is smoky)
(wherever there is smoke)
a s5odoaoa) er<K (there is fire asop
in the ktichen).
"Devadatta is mortal.
Because Devad atta is a man.
All men are mortal."
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6.0
a
&O&DO&.'
8? S>
^sp^p
*To
1.
2.
3. sSpc^eocSdJ ^bj^eo ^o : A, B, C
4. ,
5,
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61
L Sf-'
O 83"
es
N8) L
rT'eatsorfeo eso eb
2. e9&sii'f5sSbo.!,. (inferernce)
.
4. ''Alice in the wonderland"
The cat was sitting near the fire and smiling from
one ear to the other.
'Please tell me/ said Alice, a little shyly 'why yourcat smiles like that ?
'It's a Cheshire cat/ said the Duchess, 'and that
is why pig".
She said the last word so angrily that Alice jum-ped with fright. But she saw that the Duchess was
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--ff*AcEo
talking to the baby, so she went on again. 'I didn't
know that Cheshire cats smiled like that. I didn't
know cats could smile."
They all can1
, said the Duchess, 'and most of
'them do'
'Idon't know any that do/ Alice said very politely.
Then you don't know very much,' said the Duchess.
'We're all mad here. I 'm mad, you're mad,' said
the cat.
'How do you know I' m mad ?' said Alice
you must be/ said the cat / or you would'nt have
come here/
5.
() All birds can sing
Hence, some birds can sing a song.
(es)All those who understand English are educated.
Some amimals understand English,
Hence, some animals are educated.
(si)All the clever boys got prizes
No foreigner got a prize
Hence, no foreigner is clever.
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(laws qf
(thinking), QO&&O& (thoughts)
i&o
|SS|cS3b
s&ex> 5^). S
s$ob)5oa
(The law of identity)
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64
(2) 5jg& ac&s&o (The law of contradiction)
(3) &QVJJ d&6o (The law of excluded middle)
"to be" ^ |d&Sb
P ^&2S)^oa. ^e 53sc!0^_. ^ B esL
: "The grass is green".
grass"; S^c6sS^^ "green". 'Is' es^^do"grass" "green''^-grass'-'green' ^as
i s^tr-fib. ^e 6is5jcerfl
'is'
(copula)
"Rama is the son of Dasaratha
"son of Dasaratha" o &^g BFOI sScs ? wo"S "Ramav'son of Dasaratha ? .
Sojao^t3^; O'^^S aJ '^^e5i(^^l"Rama/
'-Dasaratha" '6
New Delhi is the capital of India" es>3
. -New Delhi", capital of lndia"o
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"capital of India" So rtrzy _a&>oa.
C3B 55r
>
>peo. >c& S^ctfpeo )
Cia
c! tfocSo^.exjo&sSt&Y &nsSJotf'8s>go a, s Sotoo
ol
"|f x is anything whatsoever, then x - x"
^^oa?y= ^e^o^o. &ef>g^rj
B $i)
goS"8
(assumption)1^ (symmetric relation) ^^CO^^D: If x is y
then y = x es-^otftf u |>xSoeDo^^o (Transitive relation) :
If x = y and y = z then x = z
cyG. SjShofii x =y. ssSj'v^o y
(possible states)
either y ^ x $& y ^ not x. y = not x
x js yf y = not x< Hence x = not x. s
D( v = xa y
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> 6oo. A-B,o a Q
A-B = CD
05
"All are equal in the society" ^Scfo "All are equa|
in the society but some are more equal than others."
d'oijo^
53"n
65coif3 ^So^nS^or
es?6o(><>tj'e (inconsistant)
(proof by contradicion) eb
(reductio ad absurdum) ^o
(method of indirect proof) e9o&r=o. '^pSo o3rcoS)t3a&3ff'
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3.
67
. sj<3
)
. 652J C'- oJ 8J
SS' ^COD^PC. ^cicco^ a.g'dStJ -
oidBo&iS:cdjCa.
:P & P.
C3
es.^doo
(Rama is tall)
'3ji?esf
(specify)
co
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A 5T>s3>Dotoofi<3_" Anything must be either
An/thng must be itself or its negation"
(domain)
(complement)
'AB ; 'A
PV (-P)rv ^_^. A-B
&Kb'oc3 SS. A
^odJ'cxo.J
A-B
o
. 'A is
'
(A is not older than his brother B)^6
older than B'3 ^><5<S[SSSs'53
85i>
ga)l 'A is younger than his
brother B'
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6
u
. (symbolic logic)
(Propositional logic)
. 'Not"
'and', 'or', 'if.. .then7
, 'if and only if-
1. S^g^j*^ IjSSsf S7e S'gex)(Contradictory
propositions)
'not' ftf^&O CJ^D*Sl '
l (jSSS'53B
g'gO^00<^) 'it
is not the case that' ^tfS&o C?OCPS'^) ST'C?^^t-j j &
-sr>^3^^ 'The wind is blowing'
J&oO 0^ 53^?^ \&*oy=s<>&-\ S5:?6oo u E^ a <=L
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71
"The wind is not blowing' e|p 'It is not the case
that the wind is blowing'. The wind is blowing'
?OI wb
i
L
(table)
2.
^o p
(viceversa)
True (T) & False
(Conjunction)
'but'
'and'
yo : 'The wind is blowing', 'it is hot outsidee>
'the wind is blowing and it is hot outside' &&
6ci. P and O
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P & Q
oi
3.
rr P and Q
(Disjunction)
'or'
s53odjdo. The wind is blowing, 'It is hot outside'
o Saj'fflS'o 'The wind is blowing', 'or it is
hot outside' 3^>o<3. P,Qe c3o&jjoSa^sy
Q^ f6o^^a^ab. &&&* P rrfe Q
,
S<3jesS'^E ?3^SfrS3)dbo(3. P. Qoo
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73
P,Q CO
4. (Conditional)
jf ...... then
(antecedent)'
:- ''if the wind is blowing(consequent)
it is hot outside" ^ io5Seio53t'3'eors
"if the wind is blow-
ing"
P, Q
then Q"
'o "it is hot outside"
"If P
P only if Q
P is a sufficient condition for QQ is a necessary condition for P.
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74
eos5?5o
p >-Q
Q
Q
T
F
T
T
. p Q co
Q
jj6SsrB535T)
ge>si) "If and only if
P, ,Q
If P then Q and if Q then P
Q, p
p, Q
-Q
0(3
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75
Q
T
T
F
F
T
F
T
F
T
F
F
T
. P, Q 032)
{6#<j&S&&oa. p, Q eo
o5
-, A, V, ~+,
(parenthesis),
V
p A Q
V '
Q j-R
-- .. P, Q, R
R,
T, F, T
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76'
P A Q (< >) -RV (Q-+-R)
F T
T
T S )'8
o. p, Q, R, S
V
T
T
T
T
F T
F F
T
isso L
(-PAQ) v (PV-Q)
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P, Q
(Implication)
PA (P-^-Q) implies Qi. e. PA (P-*Q) -^Q
(equivalence)
A,
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78
2j luw4 on (cases)
2 n
E) U.
N
(Consequence)
B iSidfi'sa'S'eo A., A,, A,...AL-S'^3A | = B
*
06
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79
Q is the consequence of P,R,QAP >-R
PAQ->R -do- P,P_>R,R
-do- QAP~-R,-QP-R
<& (Derivation of consequence)
L a?
p, t
: BI a,o'
oc^
is a prenube)p
t
esia ;DO&*^ &ojo#5j| ^Sac. (These are formulae C|C2 ...
preceding BI which is a consequence of the preceding
formula).
AVB cpSe^oSx) CVD ^^ LojrSo
A-+C, B-+D
[1] (1) A->C
[1] (2) AVB-*CVB
[3] (3)
[3] (4)
[1,3] (5)
[6] (6)
[1,3,6] (7)
B-^D
CVB->CVD
AVB->CVD
AVB
CVD
' (D->2)
(3) -(4)
;(2)A(4)-^5)
>
;
(5)V(6)-^7)
(designates)
(brackets)
(correspond)
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aoc(i), (3), (e)7v
(Indirect proof)
jic ip:
A,, A2 , ...
Ai,A2, ... Ameo Sdi^noono^riB B
(The formula B is justified in
a derivation having 'Ai, A 2, ... Am as premises if for someformula C we have, CA C is the consequence of Ai,A3/Am ).0(3
(theorem) A ^B, B^ >C, CVD, A->D
[1] (1) A >B p
[2] (2) B->C p
[3] (3) -CVD p
[4] (4) -A-^p p
[5] (5) -D p
D r"
[4,5] (6) A t 4 5-
[1,2] (7) A-^Ct, 1,2
[1,2,4,5] (8) f ., ,Ct, 6,7
[3,5] (9) -Ct, 3,5
[1.2,3.4,5] (10) CA-C t 89[1,2.34,5] (11) D ip5,'lO
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81
(Consistency)
(denial) as^o^^ (inconsistency)
F teo
^'<'S3ix! (theorem}: &>sF fon^o^spS'qo 'C'' O
Ai, A2 ... Am /= CA-C wcoD^sSj.^ S&P^ Ai, A2 . ... Am
, CVD,~A-D, Dl =
(Rule of Syllogism)
From A^-Band B->C
we get A >C
A (B->C)->A->C
(Rules of contraposition)
(1) A->B, B->-A
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z ......Am I= B
33^7^5 gci &o
B F 2)03^5 &oc5& Ai, A2 ......... -#* (oD^l T
O
J6^c6o^ TB
Sofl5J"G5K>^
^c
esccodi) ^odora
L, G, C, S, H
^(Italics) O*
>G) A (C-S A G->H
H
-LV C
LV C F Seo^5
(L->G), C->S)
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T ex> &otoo<3. 3<^5ijStSprvoKo (^Ss^o
G T
S T Sea> &O&POM. &:03r5B& 'SosSCTtn'iVo^o H T
LV C
1. P-^(PVQ)2. PAQ-^-P
3. P-^(P->Q)4. P~>(Q-*P)5. ( P-xQ)^-^(-Q-^P)6. [(P ->-Q) A (-Q-^P)]->(P->7. (P->Q)^ *-(PA-Q)
8. (P--Q) 9-(Q~>~P)
9. (PA-(QVR)^ >(PAQ) A (PVR)10, (PVCQAR)< >(PVQ) A (PVR)
I, I->CVS, S-^U,-CA~
zT'^oar 26=64a .
63
A-j-B, C->D, AVCl = BAD
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(Predicate logic)
&Do5Fr\ (Theory of inference)
"Every citizen has certain rights and duties. Ramais a citizen, therefore he has certain rights and duties"
. 3
(X
names)
(terms)
(quantifiers)
(predicates),
cpoov
Co.
S^ec^fioo ssQAofl. e*ao e.
rob i&odxoa. ^o"ls^ ^tf^-oS* x2 1 = ''"
x2 X= 12 <^3 SSSfeS'^ES'o^ X^oiJ'
(individual variables) ^ogp^spaVoSo (proper*
3cx5;>_^
fecp^(individual constants)
fe'oci
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85
(supplement) _S (function)
. &nr>tfesigo : x is a real numbers^ x S)s$.ci&xo.
. 'real number' S$c&o. 3&s&S^ R n*
x go ^SorfsS^.
SjSjNi^o XcSag'^. (jS
iSSSafs^^o oS)^xio<3. XL g> i -
2,9,101. , 101
(property)
(x c3x>S/_")
(binary relation) . 53
Pxy n
(universal quantifiers"
quantifiers).
lo^KS13^ (existential
'all' 'every' 'each'
'Same' 'one',
all x
Every one is a student"
For every x, x is a Student"
y x (xis.a student
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\' I ej L
(jjjt3jfo;5orr> "There are some students"
"Every man is strong1' sT^
yo&SjoSr'fiGfi essys ^^^ Sj^rT'dJ1'!) .- "For evry x
if x is a man then x is strong", e^&y&i &>
(MX >Sx) es^^ofi. "Some men are storng''
s,4i^Sou>i,o^sSj:cs ^^ ^SD^C "For same x, x is a man and
x is stong"rp S^fT^o. esa ^o'lSS'on 3x (MxASx) w^abofi.
gS'^ f6^Qotfo&o<3sbdx>lsb for same xgS, if x is a man
then x is strong'^S j$zi$&. 'jf x is a man then x is strong'
c)
x is a man as well as strong
(iii) All men are strong yx (Mx >SX )
(iv) Some men are strong BX (MxASx
c> o's'o S)Qso3B51>oe3?S> ^Kx>r
>- .ep
(v) Everything has property A = yxAx(vi) Something has property A = Ax gx Ax
(vii) Nothirvg-has property A c vx (-Ax)
(viii) Something does not have A c g x (-Ax)
viii spg'(?^o v go iJSSSs'o&Si vii c^i"(?iSxi vi), L. j
eo^ 3x Ax'
Vx (-Vx) ?6o^_g oj-sS&^'ixp&i.eso^j "it is not the
case that nothfng has property A' i-e sometning does have
the property A'
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87
A,E,J,0
(ix) All men are intelligent Vx (Mx lx)
(x) No men are intelligent vx (Mx>--l x)
(xi) Some men are intelligent 3* (MxA lx)
(xii) Some men are not intelligent 3* (Mx A-lx)
(modify) ^ 5sj^&oSf* sS^cCb^a &}pgo.
o^tfesgo 'x is real'
es3 cy^S Rx &sjdir'AoO' VxR x' ^ es^sSati ''It is not the
case that everything is real" e3jy= something is not real
w^daoS. e5ca^ 'VX (-Rx)' e^ o^) 55^53=^^0 'Everything is
unreal'
"In the set of real numbers addition is an associative
operation & yx Ay yz (X+y) = X + (Y +Z) n-^|_^o
For every x there is a y such that x^-y =3- y2-x"
G&J6: Sj
3 dii aI B
(first order)!
(scope)
(bound)o
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"(individuals
domain) ^odjCo. so&e>^sSS E^-l5
"
#tf^ D
A & 8o"
TftsaorSsSjlS
c^SSjj^sSje8S's5bo&p03.
&sfcaooa
o
(TA) If A is tantologus then 1 = A(DT) If 1 = A-^B and ... A then 1 = B
(FS) 1 = A and A is free for substitution of x by x then ...
A (x/y)
(GA) If 1 = A->B then ... yx (A-^B)
(GC) If 1 = A >B and x is not free in A, then 1 = A >v* B
(PA) If 1- A *B and x is not free in B,then 1 - gx-^-A B
(PC) If1 = A->B then 1 A->3x B.
_AxA
1. 1 = _A->-A................................................... TA
2. 1 = _A->Ex-A PC, 1
3. 1 = (_A-Ex A)-K-3X-A->A TA
4. 1 = _3X_A_>A DT, 2,3.
5. 1_ _3x_A->vxA G C, v; x is not free in gx-A
6. 1 =( ax A-vyx A)->( Ax A->3X-A) TA
7. 1 = vxA->3X A DT, 5,6.
8. 1 = A->A TA
9. 1 = Ax A->A GA ' 8 -
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10. 1 = (AxA->A)->(-A-*-Ax A) TA11. 1 = A-> Ax A DT, 9,1 0.
12. 1- Ex A->vxA PA,11,xisnot free
in-AxA13. 1 = C (vx A->ax-A)-(C Ex-A-vx A)->
(-AxA ^Ex-A) TA14. 1 =
(3x-A-*-vx A)->(-Ax A-< >Ex-A DT, 7,13.
15. 1 = AxA >-Ex A DT,12,14.
p, t, cp ss>
_U
1. Giverv Px : x is a prime
Ex : x is even
Ox : x is odd.
Dxy : x divides y ie y is divisible by x.
(a) P7
(b) E2AP2
(C)
(D) 3x(Ex A Dxb)
(e) Vx( Ex -
(f) yx(Ex y-
2. o
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All judges are lawyers (Jx Lx)
Some lawyers are shy (Sx)
Some lawyers who are politicians are congressmen (Px Cx)
Not all lawyers are judges;
All women who are lawyers admire some judge (wy, Axy)
Some women are both lawyers and congressmen.
3x
VxJx >xLx)
v* (Lx K/X)
Vx (Wx ALx)-*3y (Jy
g. Bca SSaSral^tf iS$s$tfc3o& ^
Parents love their children
Everyone is indebted to sameone
Everyone who is healthly can do all kinds of work.There are triangles which are not similar.
Everyone should help his neighbours, or his neighbourswill not help him.
Some people are not admired by everyone.
There is some one who protects every person in this.
organisation.
There is someone who dislikes no one.
4. SoSa-fiff8
^Qaa tfo'&f tf&gzF^szr? $3&>&oo& :
In the universe of all people, let
Ixy : x invites y
Fxy : x and y are friends
Lxy : x has y with whom he shares his laisure hours.Axy : x agrees with y.
Bxy : x and y may become friends.
(a) 3Wx(lxx)(b) Vx (3y CFxy-^Lxy)(c) Vy 3x (Axy) A 3X Ay (Axy)
(d) gx 3 Y (Axy A-Fxy)(e) Vx VY (C Lyy A AxyH-Bxy)
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ro
(dilemma)
2.^- O CX
&&fs&o<3 (affirms)
(denies),
(Constructive dilemma) eso^Co. 5SQsorr'RK
S^^^sS^ [destructive dilemma]3.
1.
POJ
If you tell the truth, man will hate you; if you tell lies,
the gods will hate youBut you must either tell the truth or tell lies
Hence either man or gods will hate you.
&PQO&O S^^b (>) S g$(rfthuthina dilemma^
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92 ^tf-o **
If I tell the truth, the gods will love me; If I tell lies
men will love me.
But I must either tell the truth or tell lies
Hence either men or the gods will love me.
(puzzling) ^tf
fSee>>^ (material truth) &
iita$r>E83'rfL 8
2.
: If you work hard, you are not intelligent ;
If you were hard, you will be successful
Either you are intelligent or not successful.
Hence you shall not work hard.
(fallacy)
Aoioofi.
the question es
^
logical
verbal sfa-oSjrfwjss-tf material
. oa
(i America is a rich country. America is a great country,
Hence a rich country is a great country.
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93
ii A is older than B. A is older than C. Hence B is older
than C.
83
x). esoe! 5*0
3j
a, "I
?'a3 35Bf6s$&o<S.
o
(I) "That is a Chinese restaurant" > "3o^> /*&ea.
. es "^^BoiS" 3^6* &fS-\3 si>8cJ5o0^'
"Dr x is a jain scholar".
X
(II) "Soldiers are strong" l\?3Sb<s>sooorv
o
<&*sSt)o es
"The parliament is supreme" ssc'S '
Ls5S
"supreme" e5^ es
(Ill) "You eat what you brought from the market youbrought raw vegetables. So you must eat raw vegetables."
<|& 650DDF3 SSrt&^CxST8
&j6>i ftSfe^.Qg"
"raw vegetebles"
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94
B, A
i' SPC^^CO (arguing in a circle):
(infallible) Ooep^ ^dao&r>K)
eas^fib
j&l es
S5? 'oL oL >
65
ss
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Lewis carrolls "Alice in wonderland"
"After a few minutes, Alice found herself talking to
everybody just as if they were old friends, She even had
a long argument with the Lory, who became a little angry.
He saird to Alice
'
I am older than you and so I must know
more than you."
"Well how old are you?" asked Alice, The Lory would
not say, so there was nothing more to be said.
"Well, I've often seen a cat without a smile'', thought
Alice, "but a smile without a cat .'it's the strongest thing
I ever saw in my life."
Let C stand for 'cat' and S for 'Smile'
Then cat without a smile = C-S ...... (a)
and smile without a cat = S-C ...... (b)
... Contradiction of (C) = -(C-S)-C+SS-C
(b)
55 Stfcn* 3JB<>.&'&0 ifCSpotfdoo esQAoS.
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C/ smile
51
'without' e5o"^) minus ^^ wtfofl*
[paradoxes]
"All Romans are liars"
?6e^&?6c>*^^s
[j5^^?5
(II)All Romans are liars
2. "This sentence is false
(1)v/
o
1. "All Romans are liars" eaassb a.g'
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97
(2}V, /
[zeno's paradox]
;r^ d'orS
65,
[puzzle]
,a,S'
do&o3. 55 ^cr ^bo^eo
53
E3e5csr*o'-
c6 w^cdorv
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; o
[Russell's paradox]
"o. ?oc3 "J
. [it is about the
set of all sets which are not members of themselves].
&0 ^po^g'orf P(x) &$ iSSSs'Aj's'pon J5^ ^o ^C3o. $5L a- & a o
''x does not contain itself as an element" $ CF)
. P(x) f6o^% 5 S5a^ c6^bco5* Scp^?5 ?6&8 ya
P(x) Ao&ooS. $3 &&S y = [x: P(x)]
yEy sscco^essSjifc P(y) es^^boa. (if yEy then
p(y) holds) esooi^ ^a yy &! fe&er&g
o. yEy 8* o"o$o> y
93 a^orr1 es&D^o^ f6S^a ^-o^&o SsVij^go C36
j6gdBoon
sj8 &*"& KoAd^p 55^ as
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a
'"oi Q
isL
. 63
: 3
s.^ e^rvL _
-^8 Su^CxS
&&&*& Aodaaofi. 0(5
(1) "For we assumed that the world had no beginn-
ing in time then an eternity must have elapsed upto every
and therefore an infinite series of given point of time.
successive states of things must have passed in the world.
The infinity of series, however, consists in this, that i
never can be completed by means of successive synthes?
Hence an infinite past seriss of worlds is impossible,'
the beginning of the world is a necessary condition c
existnee" (Kant).
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100
[time] ss^ sStf&ioa. 'ajfl a,g" s&o$fc6 [premitive]
&cS Sie^^^^.&ofl. S&co)^ time &
zs-o* oSsSot^^ ^^a.g' time^
(prima facie)
53 sS^ofi* &
B'oiS"
s*
(II) "The party system has a double effect. If encouragesand almost demands that each party should misrepresentthe other. But the mere fact of debate is a check onmisrepresentation. If it goes too far, it exposes itself anddiscredits its authors. The dictator on the other hand canlie almost without limit; he lies to a silent people; no voiceis raised in protest or criticism, he is free to delude his nationand in the end may delude himself. Politics would notprobably agree with Socrates that the uncriticised life is notworth living, but parliamentary government saves themfrom that life, and they and we are better fit for it."
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101
S'sSr' (curb)? ^| sS
(antithesis)
(delusion)
(III) "There is only one universal passion ! fear Of
all the thousand qualities a man may have, the only one
you will find as certainly in the youugest drummer boy in
my. army as in me is fear. It is fear that makes men fight : it
is difference that makes them run away : fear is the main-
spring of war. ..well what of that : Has fear even held back
a man from anything he really wanted ? Never/'
_eS>
.-es^ c&o.
69cdi2fo.
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(hunger) s&3 (sex) &
^s^s" 530^0 e
I., O oJ
(IV) "One Sophist who charged a fee for teaching
his pupils "how to make the worse cause appear better,'
brought a pupil into Court for non-payment of fees. The
pupil argued that he need not pay whichever way the
verdict went : for if he won, that was that But if he lost, he
clearly had not been properly taught. The Sophist replied
that he ought anyhow to receive his fee ; for if he won, that
was that ; but if he lost, he clearly taught his pupil what he
professed to teach. The judge found a decision
impossible."
-\2i s S'tfow &&' Se^gp^p,S/cj fe)
A
A
(semiparadox) cs^o
esoeb
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es 108
53 5P?6 6-0 a.
1. ''There is no living culture without a living tradition.
If India is beloved and cherished among the 'elite' of
the west, it is on account of her traditional culture.
And this culture is embedded above all in the trea-
sures of Sanskrit. Sanskrit and lnda are inseparably
connected in spite of all the transitary, harangness
of the politicians."
2. "What a funny watch." she said, "It tells the day of
the month, and doesn't tell what time it is !''
"why should it ? Does your watch tell you what year
it is ? The Hatter quickly replied.
"Ofcourse not" said Alice.
"Well, that is jusr the same with mine," said the Hatter.
Alice didn't understand at all.
3 "Have some more tea," the March Hare said to Alice,
very seriously. "I have had nothing yet," Alice replied
in a rather loud voice," So I can't take any more."
"You mean you can't take less," said the Hatter. "If is
very easy to take more than nothing"
4. "Take off your hat," the King said to the Hatter.
"It isn't mine," said the Hatter.
"Then it must be stolen" shouted the King The Jurymen immediately wrote it down in their books.
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104
"I keep them to sell," The Hatter added as an expla-
nation.
''I've none of my own. I'm a Hatter"
(Alice in wonderland)
5. You say you don't believe in miracles? Why ; there is
evidence of them around us every day. Wireless and
television are miracles, the way that a magnificent
flower is produced from a tiny seed is a mircle. The
functioning of the intricate mechanism of the human
body is a miracle, and for that matter life is a miracle.
6. It would also be easy enough to attack the fallacy upon
the facts. Everybody who has any real experience
knows that good writing should not necessarily come
from people with many experiences. Some of the art
which Is closest to life has been produced under
marked limitations of living. Its prestige has generally
lasted longer than the splash made by sensational
social figures. Jane Austen has already survived
Georges Sand, the French woman novelist. Even the
most modern critic, if he is really a critic, will admit
that Jan Austen is really realistic in a sense in which
Georges Sand is only romantic.
7. Everyone has a right to his own opinions. But womanhas a right to wrong opinions. There cannot be anyright in wrong opinions. You have no right to an
opinion unless it is founded upon that which is
universal in man, his reason. You cannot claim this
right on behalf of your subjective impressions, andirrational whims. To do so is to make the mistake of
the Sophists. (W. T. Stace)
8. There are some metaphysical ideas so abstract, so
abstruse, that it is almost imposible to express themat all without the use of figures of. speech. Languagewas mode by common men for common purposes, and
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105
this fact often forces the philosopher to use terms
which he knows only figure forth his meaning without
accurately expressing, it. Perhaps every philosophy in
the world finds itself sometimes under this necessity,
and, if Aristotle did so and was thereby technicallyinconsistant with himself, it is no wonder, andinvolves no serious blame upon him (W.T, jStace).
9. Man and woman are of equal rank but they are not
identical. They are a peerless pair being supple-
mentary to one another; each helps the other, so that
without the one the existence of the other cannot be
conceived, and therefore, it follows as a necessary
corollary from these facts that anything that will
impair the status of either of them will involve the
equal ruin of both. In framing any scheme of
women's education this cardinal truth must be
constantly kept in mind (Mahatma Gandhi )
10. On the whole, scientific methods are at least as
important as any other result of research : for it is
upon the insight into method that the scientific spirit
depends : and if these methods were lost, then all the
results of science could not prevent a renewed triumph
of superstition and nonsense. Telever people may learn
as much as they wish of the results of science-still
one will always notice in their conversation, and
especially in their hypotheses, that they lack the
scientific spirit... They are content to find any
hypothesis at all concerning some matter; then theyare all fire and flame for it and think that is enongh.To have an opinion means for them to fanatacize for
it and thenceforth to press it to their hearts as a
conviction... For that reason everyone should nowstudy at least one science from the bottom up : then
he will know what method means and how importanis the utmost circumspection (Nietzsche).
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106
11. The schools have no more important task than to
teach rigorous thinking, cautious judgement and
consistent inference; therefore, they should have alone
whatever is not suitable for these operations: religion,
for example, of course, they cannot be sure that latter
on man s fogginess, habit, and need will not slacken
the hold of rigorus thinking. But as far as the
Influence of the schools reaches, they should enforce
what is essential and distinctive in man : "reason and
science, man's very highest power" - so Goethe, at
least, judges (Nietzsche)
1 2. The more you argue, the farther you may get from the
point; hence, better stop here.
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8
>i *83?aj
fibea*^
CT^O* ea
(empirical method)
CO cO
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108
*
<o
^. (concrete)
_d (abstract) S&oosxxST8
^e drod^aa.
sr?S&) (methodology)
9*
(evaluating)
-S3og
(technology) es^^_8 ^^go (applied science)
of physics)rv
.^
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(psychology)So'Sb ^0^ S
9
S'^"(^o (sociology)
(economics) .
(The nature of science)v
ES*
'S
0^^0:0^000.
(technoligical)
(predictive)
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110
SJ1 C3
^iju
s5D?6o Sco^^odj'^c v&-^fco cyna ,S^too c^^
C!? oJ*"*
i as $r8soi5'dooaD^a'
(percepts) SS^S'COD. eso~e!>
n
(sense data)
|jlolic6efe' S^^^ o.
(sensitive) n S^^foo^o eS ^^oon 53g^o (wide-
ranging)
. )^^D (white hotL oJ ES
V
iron) &. fe^^^brpfe (s^asbfi'Sitfo fats*
B?
o co
. WOMB'S'
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fc ao?5 ^SbiS? Ill
CO
Sf^
O^
'X )yrv/\ <&>?~
sensitive)*+ ^-w
tfs<D ^dipu)^ $^3^0"^ (photographic plates)
^exDOse) 3cO" ixo . tsoj ^c^orr5u-ic3o <?ts
(natural phenomena) ?*
Bf
(cognition).
Si SsSo'eao
Oo ^To^doo
(closed watch) ^o<3a. <KScSfr'o''o
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(Observation and facts)
,2oKs
(demarcated)
(rfumbered) ^
(figures)'
(pre-cenceived notions)
(uniquely)-
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118
COD;
I^SS \SbocpE9 O J
flips' ^go^o (counterpart)
(one to one)
vAdfc Szy^c^6e.S'
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114
..
OJ tj C'J oJ
^ S^dHa&S)
n*!L
(periodic table)
o
CD
(high energy) otf 3^?6 ^^o^ & *?&>
(theory)
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115
0;\
a,"! a.S'
o (Sciences and certainty)
f6?SisuS'u
OS)"
&&(*oe1bo<2>
38^
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(John Dewey)
g.
(Analytical nature)
65^V
^ asoesS ~B&>oS
DsStoo Sfcfe <Doe5oSb es^ i sSV L_
d-4O
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117
(Development of Scientific
Method) :
sSO^ofl.65dx) &&&&
O ol
(random) SS
sfo e^^ (circle)/ j
SoC3cn>o(p
(astrology), s$bepiasS*e! (superstitions)
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118
a^&dfia^
as6 S'e^ (over stress)
. 3 fifQ^i
SJCPCO
wfi estf&^o
[Modern scientific method]
SQ&tif* a^^^^oS*[theory of relativity]-
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[propounded].
^tf s
&croGiO^ ^S^gbrs ^a/ot3
>3 wsSKS^^ ^e:^^^. 5)5*. a.^
SSj^S<5*^ ss^^sSogj
)' [thought experiment]
Gedanken
?6 \ftcOofi.CD S-BJ S)
1
I'N' S^ofi.
aoiaRjV^
e^ ^Olj -"
i A?6ol o tJ- 'B o
XJ
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120
(Heisenberg)
(natural scheme) &>ro<3oe5:>r3
(matrix theory) f6^^o.a?A.a8
.^)
(Shroedinger) ^eSep^S'o11
(right equation)
(pictures) ES^CQO.
(mathematical transformation)
Stfor?
sQnccD.
. 9 "Bo&oiS
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(cineraria maritime) atfeoA tfSeroS* as
(S> o (0
(causal treatment)
o n
(vitreous body)
(Dr. William Schwabe).
esap8
(ocular region) j^aoSj^o^a &$
(cornea) ^dos'^ (lens)* '
O. 693$ &^ ^^^.SSxi-eS^^^Syc^O65
?6das3iX)Soo
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9
Ci Q
(
e5j ^'
.55)
ro
3 L.
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-
(problem)
E) oJ
8J-
ex. E)
(Hypothesis)
, sS oJ
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124
CP^CP r$oio. ^cg'F Jo
53-3^^^cSpirex)
^fe
JSb&^oSo ^^ w&os$
S'SAo^
tf^ tftfe |Sjta<-
" <54 oL(screen)
ooa^g OESBO& ^e^Sioa S)s58on^b. oo
(propostional) ^ C5*
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125
&> &tfeao rti>8
p^too53 i
es^S"
e^ e3e
1760 6ses&spgb Soi5?6 e?6ri (Le Sage)
. 1887
(kelvin) SspaEai^)03 (vortex atoms)
^s (Ency-
ctopaedie Britanica) flTSb^sS f6oS&ko* cpSi^ esew^ (atom)
Maxwell)
o- <6& sSB^fio^sSoS)o3c6a e3*6 "iOS" 5J'ot3'&. 1889
.
(karl pearson) -etf5" OsSba^ ^Ether squirts)
, (presence of antiworld) &$
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(Reynalds)
(centrifugal force)
p rOn
dfo.
Stforv
x> (inertia)
(coordinates)
(55)'
*Sifi
8
. isSL
(practical test).
(Experimentation) :
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: a.g"
(chemical self) rtb_5o3&?& sSa&ctfoA.
, So^ra&o, sy
. ss
(acid radical)
(basic radical)
es'fe
o co a o e>
&o
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128
$05
<P o
ao "nJQO'>CO J V
>^
(variation) ^oS
a $ a
(resistence)
(functioned)
(parametes
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129
variation)
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130
s;t\&r? tfr&o&oQti ^^i sSs-efo
(design)
(samples)
03
(Arrangement of results)
()), ^SS'tfeiSSM (classification)
bs* &-
(charts)
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s5.es 181
djorv (impressive) s'>
(Camparison)
(Concomitant variation)
(Analysis and reasoning)
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s^ES'o_So.
- 1
coei'k
x es^ ^^>.. .Y
i. i
i"
_ j i
''_
c
(substitlitiohv '
b i^oPeJON" y itfs^^aS aiesbeori,
^ a ol.L a
. ..
oSSb
. _,.,tJ
(y
(Statistical method)
c^tfE^G
es^S^raofl*j
OfS> STo^
.(applications) '&S5 COD.
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138
O . ff O
Q
v (hydraulics) ^
(Description)ss
sSb<^psS>sS (mean), a.tftfeas$- (Variance-),
(skewness) oS 57=^ eac^d'orY1 S?6> jSo(p?& Bb^ ^
ssfi 35^55 e
(Analysis)
sie^o (Samples)
?!* "'.-o'SSr'^- (normal) ^os
.
CO gf. 'C5
i ^;_eI U
(Prediction)
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134
S'oST* (probability
curve)o
53"!^ (permissible range of error)
o 258
(randomization)
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186-
average)
^oSS^?ye
S^^S (variance)
(statistical,
(standard deviation)
sg (covariance)
(method of analysis of variance)
ribQoQJS esfl
(Camputer method)
a
iS'sSj'Sh iSJ^in
(calculations)
o-&'6ao^o&, ^6^r
(Steps) n^oo esfi sSS^&oS. ^s 3363^5,j
.
"
^^b^g^'sSaoe^rs" gao^&>.
(systems analysis) ?6o^^^s2o S'
es
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136
e) <p
O a <9 co
(systems analysis) ^o&ptf). 3^n^ ^ s5?sS?6s*a
-
ea
*o&ooa.
(codified)
(Synthesis/Generalisation)
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137
&on g'S&^ox). esoei 5Btf<>$
otfssaeo
'
(model of the system)
lo
65
Si
e> co
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188
4?s: <D. sptfS' (George F, Carter)
Sda
rv'^
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10
'A'
B' $0o*orf3fcax>ii3 53=^3 S'C'essF' ^osoz? 'If A then B'
A
esc T
? itfsS^o8 (mass) ?f (energy)L. z>
(counts) S* fo&
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140
(velocity)>
<3> tj)ot
O
.. 5a
<. I
/l o .L.
fi.O
E=
(plethore)
&o.3.
(w6SsS>S*ifeaSS)
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, .
U
n
r3 e^qa
(Methods of expert
mental inquiry)
fs Bacan).
J
.S; Mill)
5iJ'esisti rSoffloqsow^
''
(empiricists)
) (Method of Residues)
5co (Method of Agreement)
(Method of difference)
-S)g^sS^ (Method of- agreement and difference)
Method of x>pncomit^nt variation)
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142
o^^p .
(inclined plane)
Soofi.flsS|dJsS^aSo (celestial bodies)
\ exo.
(collide).
^(Sf8
e^g" ee
%> ro^eacrv^ cSr-OoOoa. es 5
836/^0^^
(insufficient)
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143
es S)^orv>
ic weights)
(Mendeleyer)
?6 sSa^ (periodic table)O
^^ g^lo^ (gaps)
nd35iS> (Gallium)
1874 <9* S"^^ ^ ^ofidaoS (Scandium) , 1886 <
(Germanium).
a,si3r^ ^^SxpoS ^, a.S''
(bodies) g's^ex) (corpuscles)
&ao j*tfraa'8
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r 55
65
s.g'
(Dr.- C. Eijkman) .
144
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145
(Polished rice)
(Thiamene) s^gjo^&o^o trees'
ss Bjfr S) 53
o sa
e^coo^ 55
S}o>o23be ^
"(types)
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146
(disappearance)
fego (aflergic action) fi^sfrtfoiHb Sncj8fr\
2) cl
es sScyo'S ?<68oe3'tn>^
3o<&/ oj
r8
(Natural sciences)
fa*
). 63
es
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147
wcvoo
^) fS
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148
(amino acids)
&cco?$
5rorsoSb
Oi
a-g"
^ (mood) ."
(duration of sfeep).- a^gj6^ sSsS
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o (graph)
(picfure)
(exclusion)S3
(trial and error) fi
(enapplicable) j^o-Son-o
a
!66a2potfSS^.
149
(radical *o*
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160
63
(Specialate),
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- ;sr$?,
.sSesoD esS^Co. i
oL L l
s"c6'v5~Sb S'^eso
151
(1")esiSg
o, (2} j^tSpiKr'o^6
a30' \ J L
5 5"So
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152 66^.0
(beauticians) 5*^6",0
e
dfr ea&pa
<5. esS^ 533o"&
8.>ct^doo
tfo es
"O&DO& (assimilate)
(lables) ^cossy st)?6o
(The Statesman, May 22, 1978).
oi3 wAc
ic3L
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153
o i
o L
^fd5> l '9SScj'R) SoSoSaniSS^XL- 2
w&daofl.^
a,"!
MIT 3o33 as'.S" (B Kan)
^ a-S" r6&o3
es^fioo
^02) "4^8^-tf^ ^O^sSb SSbOcScoE3
. tftfeo
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1,54
So so^
oI.63 O
ES-
oj^n rdo>
(irradiate) (
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a^rS'on