Contrapositive

noun · LSAT

Meaning: The logically equivalent form of a conditional statement, made by reversing and negating both parts: "If A, then B" becomes "If not B, then not A."

Example

The contrapositive of "If it rains, the game is canceled" is "If the game is not canceled, it did not rain."

Synonyms and antonyms

Synonyms:

equivalent form

Practice question

Which choice best matches the meaning of “contrapositive”?

Show answer

D) The logically equivalent form of a conditional statement, made by reversing and negating both parts: "If A, then B" becomes "If not B, then not A.". “Contrapositive” means: The logically equivalent form of a conditional statement, made by reversing and negating both parts: "If A, then B" becomes "If not B, then not A."