Modus Tollens

Examples and definition of the Rule of Inference called by the name of Modus Tollens in Propositional Logic (90 Second Philosophy and 100 Days of Logic)

NOTE: There is a mistake in problem 3, P1 should be ~p⊃r. Thanks to Elie El Khoury for the catch!

Information for this video gathered from The Stanford Encyclopedia of Philosophy, The Internet Encyclopedia of Philosophy, The Cambridge Dictionary of Philosophy, The Oxford Dictionary of Philosophy and more!

Information for this video gathered from The Stanford Encyclopedia of Philosophy, The Internet Encyclopedia of Philosophy, The Cambridge Dictionary of Philosophy, The Oxford Dictionary of Philosophy and more!