In the system of logic created by the philosopher Aristotle, the syncategorematic term is any word or group of words that describe a singular concept. Syncategorematic terms can combine to form a proposition. There are four kinds of these propositions. A term can be either distributive or non-distributive, and the proposition itself can be either affirmative or negative.

Distributive here means that the term refers to the whole of a set. _All_ of x as opposed to _some_ of x. Non-distributive means just the opposite, only referring to a portion of a set.

Affirmative propositions describe something by associating two terms. x _is_ y. A negative proposition describes something by dissociating the two terms. x _is not_ y.

So we have the following four possible combinations, forming propositions, each combination is designated by a letter.

"A" propositions are distributive and affirmative, and come in the form "all x is y"

"E" propositions are distributive but negative, and come in the form "no x is y"

"I" propositions are non-distributive and affirmative, and come in the form "some x is y"

"O" propositions are non-distributive but negative, and come in the form "some x is not y"

Syn*cat`e*gor`e*mat"ic (?), a. [Gr. ; with + a predicate. See Syn-, and Categorematic.] Logic

Not capable of being used as a term by itself; -- said of words, as an adverb or preposition.

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