Download - De Morgan’s Laws - White Plains Public Schools / Overvie · The Laws of Simplification, and De Morgan's Laws De Morgan's Laws and The Laws of Simplification, Conjunction, and Disjunctive

De Morgan’s Laws and

The Laws of Simplification, Conjunction, and Disjunctive

Addition

SWBAT: Use the De Morgan’s Law and the Laws of Simplification, Conjunction, and Disjunctive Addition

Warm – Up

Prove the law of Contrapositive is valid by means of a truth table.

p q ~p ~q p q ~q ~p (p q) (~q ~p)

T T F F T T T

T F F T F F T

F T T F T T T

F F T T T T T

Logically Equivalent!

Tautology is formed!

h d

t m

I will not take Gloria to the dance and I will not take

Patricia to the dance.