Introduction to Proofs A proof is a valid argument that establishes the truth of a statement. Previous section discussed formal proofs Informal proofs.
Lecture 9 Conditional Statements CSCI – 1900 Mathematics for Computer Science Fall 2014 Bill Pine.
DeMorgan’s Rule DM ~(p v q) :: (~p. ~q)“neither…nor…” is the same as “not the one and not the other” ~( p. q) :: (~p v ~q) “not both…” is the same as “either.
