Propositional Logic: Double Negation  @PhilosophyFreak
Propositional Logic: Double Negation  @PhilosophyFreak
Kevin deLaplante | Propositional Logic: Double Negation @PhilosophyFreak | Uploaded February 2013 | Updated October 2024, 9 hours ago.
criticalthinkeracademy.com

This video introduces the concept of the contradictory of the contradictory of a claim, or "not-(not-A)", sometimes called "double negation". It's an example of a substitution rule in propositional logic, where you can always replace "not-(not-A)" with "A".
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Propositional Logic: Double Negation @PhilosophyFreak

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