Verify P . (~P + Q') = (P ⇒ Q)' using truth table.
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The columns P.(~P+Q') and (P⇒Q)' have identical values. Hence, the expression is proved.
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Using the truth table verify the expression
(~P ⇒ Q) ^ P = (P ^ ~Q) v (P ^ Q)
If (X ⇒ Y) then write its:
(i) Converse (ii) Contrapositive
Define the term Contingency, Contradiction and Tautology.
What is meant by implication? How is it different from biconditional?