syllogism

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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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
sylogismus
syllogisme
syllogism

syllogism

[ˈsɪlədʒɪzəm] N
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

syllogism

nSyllogismus m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

syllogism

[ˈsɪləˌdʒɪzm] nsillogismo
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
But he does not bind up truth in logical formulae,-- logic is still veiled in metaphysics; and the science which he imagines to "contemplate all truth and all existence" is very unlike the doctrine of the syllogism which Aristotle claims to have discovered.
He forgot, as Sergey Ivanovitch explained to him afterwards, this syllogism: that it was necessary for the public good to get rid of the marshal of the province; that to get rid of the marshal it was necessary to have a majority of votes; that to get a majority of votes it was necessary to secure Flerov's right to vote; that to secure the recognition of Flerov's right to vote they must decide on the interpretation to be put on the act.
The basic of logic is the syllogism, consisting of a major and a minor premise and a conclusion -- thus:
From that premise the school of tulip-fanciers, the most exclusive of all schools, worked out the following syllogism in the same year: --
She reflected; and with her acute memory for the letter of Angel Clare's remarks, even when she did not comprehend their spirit, she recalled a merciless polemical syllogism that she had heard him use when, as it occasionally happened, he indulged in a species of thinking aloud with her at his side.
"This is the point of departure; it is a syllogism. The world is not wanting in attractions.
Never had he heard such jargon of scholastic philosophy, such fine-drawn distinctions, such cross-fire of major and minor, proposition, syllogism, attack and refutation.
This was a false syllogism, that conclusion had no connection with the premise, while that next premise was an impostor because it had cunningly hidden in it the conclusion that was being attempted to be proved.
And so the poor child, with her soul's hunger and her illusions of self-flattery, began to nibble at this thick-rinded fruit of the tree of knowledge, filling her vacant hours with Latin, geometry, and the forms of the syllogism, and feeling a gleam of triumph now and then that her understanding was quite equal to these peculiarly masculine studies.
But to the imaginative man, John Barleycorn sends the pitiless, spectral syllogisms of the white logic.
But those who have their wives and children in common will not say so, but all will say so, though not as individuals; therefore, to use the word all is evidently a fallacious mode of speech; for this word is sometimes used distributively, and sometimes collectively, on account of its double meaning, and is the cause of inconclusive syllogisms in reasoning.
But, on examination, I found that, as for logic, its syllogisms and the majority of its other precepts are of avail- rather in the communication of what we already know, or even as the art of Lully, in speaking without judgment of things of which we are ignorant, than in the investigation of the unknown; and although this science contains indeed a number of correct and very excellent precepts, there are, nevertheless, so many others, and these either injurious or superfluous, mingled with the former, that it is almost quite as difficult to effect a severance of the true from the false as it is to extract a Diana or a Minerva from a rough block of marble.

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