contraposition

Pronunciation

Noun B2 Upper-intermediate

In logic, a statement formed by reversing and negating both parts of a conditional statement.

"The contraposition of "if it rains, the ground is wet" is "if the ground is not wet, it did not rain.""

Test yourself

Which word fits the gap? "The _____ of "if it rains, the ground is wet" is "if the ground is not wet, it did not rain.""

Answer: contraposition

In your own words, what does "contraposition" mean?

In logic, a statement formed by reversing and negating both parts of a conditional statement.