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the·o·rem /ˈθiərəm, ˈθɪ(ə)rəm/

定理,法則

theorem

定理

From: Network Terminology

theorem

定理

The·o·rem n.

1. That which is considered and established as a principle; hence, sometimes, a rule.

*Not theories, but theorems (░), the intelligible products of contemplation, intellectual objects in the mind, and of and for the mind exclusively.* --*Coleridge.*

By the theorems,

Which your polite and terser gallants practice,

I re-refine the court, and civilize

Their barbarous natures. --*Massinger.*

2. Math. A statement of a principle to be demonstrated.

Note: ☞ A __theorem__ is something to be proved, and is thus distinguished from a __problem__, which is something to be solved. In analysis, the term is sometimes applied to a rule, especially a rule or statement of relations expressed in a formula or by symbols; as, the binomial theorem; Taylor's theorem. See the Note under Proposition, n., 5.

**Binomial theorem**. Math. See under Binomial.

**Negative theorem**, a theorem which expresses the impossibility of any assertion.

**Particular theorem** Math., a theorem which extends only to a particular quantity.

**Theorem of Pappus**. Math. See Centrobaric method, under Centrobaric.

**Universal theorem** Math., a theorem which extends to any quantity without restriction.

The·o·rem, v. t. To formulate into a theorem.

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From: WordNet (r) 2.0

theorem

n 1: a proposition deducible from basic postulates

2: an idea accepted as a demonstrable truth