(1)If-Then Implication

(2) If and Only If Implications

If p to q is an implication, then the implication ~q to ~p is called its: (A) Converse (B) Contrapositive (C) Inverse (D) Alternative

Some Examples based on the Implications for practise

Let p and q be two propositions . Then the inverse of the implication p to q is

Let p and q be two propostions. Then , the contrapositive of the implication p to q is

Write converse, inverse and contraposilive of the implication: if a quadrilatera ABCD is a square, all the sides of the quadrilateral ABCD are equal.