Posted by Jen on Wednesday, July 13, 2011 at 6:08pm.
Construct a truth table for (p ^ q) ↔ ~p

Mathgeometry  MathMate, Wednesday, July 13, 2011 at 6:25pm
the truth table for biconditional <> is
it is true when both p & q are true, or both are false.
p q (p^q) <> ~p
T T T T T F F
T F T F F F T
F T F F T F F
F F F F F F T
Since in all cases, the proposition is false, it is a contradiction.
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