Modus Ponens is a valid and simple argument form used in many everyday conversations. Modus ponens is a common rule of inference and takes the form, "If P, then Q. P. Therefore, Q". This is similar to the transitive rule in geometry. For example, this argument can be used if one says," If it is sunny out, i will go to the beach. It is sunny out today. Therefore I will go to the beach". The P statement stays constant. The Q statement also always stays constant. If the argument does not follow this exact format, then it is not formatted properly and is incorrect and not valid.
Modus Ponens relates closely with another simple argument form know as modus tollens. This is also a valid form of argumentation. Related to geometry, this form of arguing follows the same format of the contrapositive. This format can be proven as, " If P, then Q. And if not Q, then not P". For example," G needs good grades to play baseball. G does not have good grades; therefore, he will not be able to play". In this instance also, both variables must stay constant in order for it to be in correct format.
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