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MODUS PONENS [1 record]

Record 1 1995-02-23

English

Subject field(s)
  • Artificial Intelligence
DEF

A basic rule of logic that asserts that if we know that A implies B and we know for a fact that A is the case, we can assume B.

DEF

If A is true, then B is true. A is true therefore B is true.

CONT

Logically speaking, the two rules of inference most used in problem solving are modus ponens ("If A implies B and you know A, then infer B") and modus tollens ("If A implies B and you know not-B, then infer not-A")...

French

Domaine(s)
  • Intelligence artificielle
DEF

Règle qui veut que si P alors Q, et que si P est vrai, alors Q est vrai.

CONT

SI Durand est informaticien ALORS Durand est mort : Durand est informaticien PAR CONSÉQUENT Durand est mort. La formule simple, utilisée dans les deux exemples ci-dessus est l'une des plus fondamentales en logique; on lui a donné le nom latin de modus ponendo ponens (abrégé généralement en modus ponens).

OBS

En logique, appelée "règle de détachement". Signifie en latin "mode qui pose". Il existe aussi un "mode qui pose en supprimant" (modus tollendoponens) du type : ou A est vrai, ou B est vrai; or A n'est pas vrai; donc B est vrai.

Spanish

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