Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Of, relating to, resembling, or consisting of a syllogism or syllogisms.
Century Dictionary and Cyclopedia
- Pertaining to a syllogism; consisting of a syllogism; of the form of reasoning by syllogisms: as, syllogistic arguments or reasoning.
- n. The art of reasoning by syllogism; formal logic, so far as it deals with syllogism. Compare dialectic, n.
Wiktionary
- adj. of or pertaining to a syllogism
GNU Webster's 1913
- adj. Of or pertaining to a syllogism; consisting of a syllogism, or of the form of reasoning by syllogisms.
WordNet 3.0
- adj. of or relating to or consisting of syllogism
Examples
“Quoth the late great Richard Jeni: It's called syllogistic reasoning, and you get high and proof stuff all day!”
“The purpose of this letter is to place in clear, stark terms the syllogistic fallacy long misused by some Americans to promote religion in Government.”
“This process is, therefore, usually illustrated in what is called the syllogistic form, thus:”
“If some of them [the practical arts] employ syllogisms as medicine and agriculture do, they are not called syllogistic because their purpose is not [to convince another] nor to employ syllogisms, but to do some activity (1994, p. 29, ll.”
“Loughner's ideas about the world, as revealed through his YouTube channel, are exceedingly nebulous, fixated on currency, grammar, and seemingly dominated by the idea that if you say something multiple times in a vaguely syllogistic way, it will become true.”
The Washington Post: Giffords shooter Jared Lee Loughner's YouTube message to the world
“He had made a kind of syllogistic analogy: In Tibet”
“The facilitator of the thinking module does not need to know anything about "divided middles" or "syllogistic reasoning" or "remote associates.”
The Huffington Post: Eric Maisel, Ph.D.: Adding Thinking to the School Day
“Likewise, while it would be odd if modern authors in general wrote things that lent itself easily to this sort of structuring except, perhaps, for occasional exceptions like Joyce, who might well do something like encode a syllogistic structure into a book, it would be less odd for poets who grew up learning syllogisms as a major part of their education.”
“Aside from the riddling content and the further evidence of what he means by certain terms that are central to his verse “the this,” the error or perhaps the evil of actual choice, the poem shamelessly lays bare its syllogistic structure:”
“I remember a passage in Alain de Lille's medieval work, the Complaint of Nature, in which he describes sex entirely in syllogistic terms -- as in syllogisms minor and major terms are connected by a single middle terms, in sex minor terms and major terms are connected by a set series of middle terms starting with acquaintance, moving through kisses, and ending in mutual inherence.”
Lists
These user-created lists contain the word ‘syllogistic’.
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hildjj's Words
bookmarklet, demisemiquaver, zeitgeist, hermeneutics, oligarch, quisling, absinthe, mellifluent, verisimilitude, implacable, necrotic, nacreous and 243 more...
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stpeter's Words
abase, abasement, abashed, abdicate, aberrant, abeyance, abhor, abhorrent, abide, abject, ablation, abnegation and 3536 more...
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Psych
dissonance, aphasia, psychotic, schizoid, schizotypal, cognition, sublimation, oedipal, self-actualization, psychoanalysis, humanist, freudian and 51 more...
Tweets
Looking for tweets for syllogistic.

Prolagus I will refer to you anyway. :-) Oct 5, 2008
mollusque Yes, but Google shows someone else got there first. Oct 5, 2008
Prolagus I love it! Is it yours? Oct 5, 2008
mollusque Time waits for no man.
No man is an island.
Therefore time waits for islands. Oct 5, 2008
seanahan Now we have to define what the meaning of the word "is" is. If I am being illogical, but say that I'm being logical, have I now changed the meaning of the word logical? You are making what I would call a "false syllogism", which is fine, but I'm of the opinion you can't just change the original meaning with the false meaning. I would say,
1. same as above,
2. Falsely used to describe specious (often subtly so) reasoning. Dec 24, 2007
mollusque Of course I can. I illustrated Ceria's definition 2. Dec 24, 2007
seanahan Actually, before you do a syllogism, you have to convert into first order logic.
1. Peanut_butter_sandwich > nothing
2. there does not exist X such that X > eternal_happiness
From this, you can't reason the way you said. Dec 24, 2007
mollusque A peanut butter sandwich is better than nothing.
Nothing is better than eternal happiness.
Therefore a peanut butter sandwich is better than eternal happiness. Dec 21, 2007
sionnach One might even say that definition 2 is specious. Also, since when are subtle and specious interchangeable?
However, definition 2 is surprisingly persistent, showing up in a variety of dictionaries. Dec 21, 2007
seanahan I'm fine with definition 1, but definition 2 is somewhat suspect. Dec 21, 2007
ceria from wordsmith:
syllogistic (sil-uh-JIS-tik) adjective
1. Of or relating to syllogism (a form of deductive reasoning consisting of a major and a minor premise and a conclusion).
2. Subtle or specious.
noun
1. Deductive reasoning.
2. A subtle or specious piece of reasoning. Dec 20, 2007