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modus ponens

Line breaks: modus po¦nens
Pronunciation: /ˌməʊdəs ˈpəʊnɛnz
 
/

Definition of modus ponens in English:

noun

1The rule of logic which states that if a conditional statement (‘if p then q’) is accepted, and the antecedent (p) holds, then the consequent (q) may be inferred.
Example sentences
  • The statement that q follows by modus ponens from the other two stated as known in the antecedent of the subjunctive principle P; this principle counts on the person to draw the inference to q.
  • It could be a premise either, as some say, as the premise of a propositional scheme such as the modus ponens, or, as others assume, as the conditional premise of a hypothetical syllogism.
  • We also noted that one of the most fundamental inferences concerning the conditional is modus ponens: a, a c c.
1.1An argument using the rule of modus ponens.
Example sentences
  • Consider, for example, propositional logic: here one can start from self-evident axioms and proceed to deduce theorems by argument forms - modus ponens, for example - that are themselves self-evidently valid in an obvious sense.
  • The first three points are a valid form of argument, in the form of modus ponens.
  • Robustness was meant to ensure that an assertable conditional is fit for modus ponens.

Origin

Latin, literally 'mood that affirms'.

Definition of modus ponens in:

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