This simple logical mistake could derail your argument.

One person’s modus ponens is another person’s modus tollens

The Two most common argument forms are called Modus Ponens (MP) and Modus Tollens. (MT) They both contain a conditional premise (if P then Q), but the second premise for Modus Ponens is P and for Modus Tollens it is ~Q. Unfortunately, arguments in ordinary speech usually state only the conditional premise, and leave the listener to infer the other premise. Usually this is not a problem. For example, let us suppose you say “ If this law…



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