# syllogism

(redirected from Categorical syllogism)
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Related to Categorical syllogism: Disjunctive syllogism

## syl·lo·gism

(sĭl′ə-jĭz′əm)
n.
1. Logic A form of deductive reasoning consisting of a major premise, a minor premise, and a conclusion; for example, All humans are mortal, the major premise, I am a human, the minor premise, therefore, I am mortal, the conclusion.
2. Reasoning from the general to the specific; deduction.
3. A subtle or specious piece of reasoning.

[Middle English silogisme, from Old French, from Latin syllogismus, from Greek sullogismos, from sullogizesthai, to infer : sun-, syn- + logizesthai, to count, reckon (from logos, reason; see leg- in Indo-European roots).]

## syllogism

(ˈsɪləˌdʒɪzəm)
n
1. (Logic) a deductive inference consisting of two premises and a conclusion, all of which are categorial propositions. The subject of the conclusion is the minor term and its predicate the major term; the middle term occurs in both premises but not the conclusion. There are 256 such arguments but only 24 are valid. Some men are mortal; some men are angelic; so some mortals are angelic is invalid, while some temples are in ruins; all ruins are fascinating; so some temples are fascinating is valid. Here fascinating, in ruins, and temples are respectively major, middle, and minor terms
2. (Logic) a deductive inference of certain other forms with two premises, such as the hypothetical syllogism,if P then Q; if Q then R; so if P then R
3. (Logic) a piece of deductive reasoning from the general to the particular
4. (Logic) a subtle or deceptive piece of reasoning
[C14: via Latin from Greek sullogismos, from sullogizesthai to reckon together, from sul- syn- + logizesthai to calculate, from logos a discourse]

## syl•lo•gism

(ˈsɪl əˌdʒɪz əm)

n.
1. an argument of a form containing a major premise and a minor premise connected with a middle term and a conclusion, as “All A is C; all B is A; therefore, all B is C.”
2. deductive reasoning.
3. an extremely subtle, sophisticated, or deceptive argument.
[1350–1400; Middle English silogime < Old French < Latin syllogismus < Greek syllogismós=syllog- (see syllogize) + -ismos -ism]

## syllogism

a form of reasoning in which two propositions or premises are stated and a logical conclusion is drawn from them. Each premise has the subject-predicate form, and each shares a common element called the middle term.
a form of reasoning in which two statements are made and a logical conclusion is drawn from them. See also logic. — syllogistic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 syllogism - deductive reasoning in which a conclusion is derived from two premisesdeductive reasoning, synthesis, deduction - reasoning from the general to the particular (or from cause to effect)ratiocination, conclusion - the proposition arrived at by logical reasoning (such as the proposition that must follow from the major and minor premises of a syllogism)major premise, major premiss - the premise of a syllogism that contains the major term (which is the predicate of the conclusion)minor premise, minor premiss, subsumption - the premise of a syllogism that contains the minor term (which is the subject of the conclusion)
Translations
sylogismus
syllogisme
syllogism

[ˈsɪlədʒɪzəm] N

nSyllogismus m

## syllogism

[ˈsɪləˌdʒɪzm] nsillogismo
References in periodicals archive ?
This article investigates the nature of Aristotelian syllogistics and shows that the categorical syllogism is fundamentally about showing the connection, in the premises of the syllogism, between the major and minor terms as stated in the conclusion.
Traditional or Aristotelian logic is a philosophical practice that uses the concept of the categorical syllogism as a foundation.
Reflecting the arrangement of the mother study, she considers such aspects as doctrines, titles of books, categorical syllogism, modal logic, hypothetical syllogism, demonstration, and definition.

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