Open In App

ISRO | ISRO CS 2017 | Question 6

Like Article
Like
Save
Share
Report

The proposition (P⇒Q)⋀(Q⇒P) is a

(A) tautology
(B) contradiction
(C) contingency
(D) absurdity


Answer: (C)

Explanation: (P⇒Q)⋀(Q⇒P) = (¬P+Q)(¬Q+P) = (¬P¬Q + ¬PP + ¬QQ + PQ) = (¬P¬Q + PQ)
Therefore it is a contingency.

Quiz of this Question


Last Updated : 14 Mar, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads