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Sticky Note
If the statement is “If P, then Q,” which expression represents its contrapositive?
  1. If Q, then P
  2. If not P, then not Q
  3. If not Q, then not P
  4. None of these
Explanation

The contrapositive of “If P, then Q” is “If not Q, then not P.”

A statement and its contrapositive are logically equivalent.


Last verified on 02-09-2026

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