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Disjunctive syllogism - Wikipedia, the free encyclopedia
A disjunctive syllogism , historically known as modus tollendo ponens, is a classically valid, simple argument form: In logical operator notation: where \vdash represents the logical assertion. Ro...
en.wikipedia.org/wiki/Disjunctive_syllogism |
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Hypothetical syllogism - Wikipedia, the free encyclopedia
In logic, a hypothetical syllogism has two uses. In propositional logic it expresses one of the rules of inference, while in the history of logic, it is a short-hand for the theory of consequence. H...
en.wikipedia.org/wiki/Hypothetical_syllogism |
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Disjunctive \Dis*junc ... Disjunctive proposition, one in which the parts are connected by disjunctive conjunctions; as it is either day or night. Disjunctive syllogism (Logic), one in which the major proposition is disjunctive; as, the earth moves in a circle or an ellipse;
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A disjunctive syllogism, also known as modus tollendo ponens (literally: mode which, by denying, affirms) is a valid, simple argument form: This article discusses validity in logic, for the term in the social sciences see validity (psychometric).
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Definition of disjunctive syllogism in the Online Dictionary. Multiple meanings, detailed information and synonyms for disjunctive syllogism. ... 1 definition found disjunctive syllogism - Collaborative International Dictionary of English v.0.48 : Disjunctive \Dis*junc"tive\, a. [L. disjunctivus: cf. F. disjonctif.] 1.
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The following are INVALID using the Law of Disjunctive Inference:; ... Suzan is going skiing, or she's going snowboarding. Suzan broke her leg. Therefore, she's going skiing. => This is INVALID. Not an example where Disjunctive Inference would work. ... Examples using the Law of Disjunctive Inference (Disjunctive Syllogism)
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Disjunctive syllogism is a valid, simple argument form: ... The reason this is called "disjunctive syllogism" is that, first, it is a syllogism--a three-step argument--and second, it contains a disjunction, which means simply an "or" statement. "Either P or Q" is a disjunction;
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