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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Spectrum of a sentence ： ウィキペディア英語版 Spectrum of a sentence In mathematical logic, the spectrum of a sentence is the set of natural numbers occurring as the size of a finite model in which a given sentence is true. ==Definition== Let ψ be a sentence in first-order logic. The ''spectrum'' of ψ is the set of natural numbers ''n'' such that there is a finite model for ψ with ''n'' elements. If the vocabulary for ψ consists of relational symbols, then ψ can be regarded as a sentence in existential second-order logic (ESOL) quantified over the relations, over the empty vocabulary. A ''generalised spectrum'' is the set of models of a general ESOL sentence. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Spectrum of a sentence」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.