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Modus ponens - Wikipedia, the free encyclopedia
In classical logic, modus ponendo ponens (Latin for mode that affirms by affirming ; often abbreviated to MP or modus ponens ) is a valid, simple argument form sometimes referred to as affirm...
en.wikipedia.org/wiki/Modus_ponens |
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Modus tollens - Wikipedia, the free encyclopedia
In classical logic, modus tollens (or modus tollendo tollens ) (Latin for "the way that denies by denying") has the following argument form: It can also be referred to as denying the consequent ...
en.wikipedia.org/wiki/Modus_tollens |
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Sakharov, Alex. "Modus Ponens." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. http://mathworld.wolfram.com/ModusPonens.html ...
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Britannica online encyclopedia article on modus ponens and modus tollens (logic), in propositional logic, two types of inference that can be drawn from a hypothetical proposition—i.e., from a proposition of the form “If A, then B” (symbolically A ⊃ B, in which ⊃ signifies “If . . . then”). ... ADD TO YOUR SITE...
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Logic has been defined as the study of the rules of correct thinking. It concentrates on the principles that guide rational thought and discussion. The most fundamental concept in logic is that of ... The name "modus ponens" comes from the Latin word "modus" meaning method, and the Latin word "ponens" meaning affirming.
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Truth Table for Modus Ponens and Modus Tollen ... Since both the Modus Ponens (the yellow columns) and Modus Tollens (the green columns) use the same initial premises (p q), rather than repeat that column we have simply highlighted the critical rows in question.
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