Most cats like to go outside to play when the temperature is above freezing. However, Jamil does not allow his cat to...

Josie-Tarin on July 26, 2022

Can you explain why it is "or" in the question but the correct answer has "and"?

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Emil-Kunkin on July 29, 2022

Hi Josie,

If we have a statement like

If X then Y or Z

It's contrapositive is actually

If Not Y or Not Z then Not X.

The contrapositive of an and is an or, and the contrapositive of an or is an and