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In standard mathematics, propositions can typically be considered unambiguously true or false. For instance, the proposition ''zero belongs to the set '' is regarded as simply false; while the proposition ''one belongs to the set '' is regarded as simply true. However, some mathematicians, computer scientists, and philosophers have been attracted to the idea that a proposition might be ''more or less'' true, rather than simply true or simply false. Consider ''My coffee is hot''. In mathematics, this idea can be developed in terms of fuzzy logic. In computer science, it has found application in artificial intelligence. In philosophy, the idea has proved particularly appealing in the case of vagueness. Degrees of truth is an important concept in law. == See also == * Artificial intelligence * Bivalence * Fuzzy logic * Fuzzy set * Half-truth * Multi-valued logic * Paradox of the heap * Truth * Truth value * Vagueness 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「degree of truth」の詳細全文を読む スポンサード リンク
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