Contraposition in Common Sentences | El Mahdi El Mhamdi

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Contraposition is a law in logic stating an equivalence between a causality and its contrapositive. Very usefull in mathematical proofs, it is explained here with common sentences.
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Thank you for this short yet excellent explanation.

calebtshionza
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Thanks! My teachers and other videos showed how to use it, but not what it really is. This really helped!

Luna-cqic