decidable
意味: Capable of being resolved or determined by an algorithm that is guaranteed to terminate with a correct yes-or-no answer for every possible input.
Decidability is a cornerstone of mathematical logic and theoretical computer science. A problem is decidable if there exists an effective procedure — an algorithm — that will always halt and give the correct answer. Arithmetic truth, for instance, is not decidable, as Gödel's incompleteness theorems showed. The concept is closely related to computability but focuses specifically on decision problems with binary outcomes. Outside formal logic, the word occasionally appears in legal and philosophical writing about questions that admit definitive resolution.
例文
- The equivalence of two regular expressions is a decidable problem, solvable by converting both to minimal deterministic finite automata. 两个正则表达式的等价性是一个可判定问题,可以通过将两者转换为最小确定性有限自动机来求解。La equivalencia de dos expresiones regulares es un problema decidible, resoluble convirtiendo ambas en autómatas finitos deterministas mínimos.2つの正規表現の等価性は判定可能な問題であり、両方を最小の決定性有限オートマトンに変換することで解ける。두 정규 표현식의 동치성은 판정 가능한 문제로, 둘 다 최소 결정적 유한 오토마타로 변환하면 풀 수 있다.
- Gödel's work proved that the set of true statements in arithmetic is not decidable by any single formal system. 哥德尔的工作证明了算术中的真命题集合不能由任何单一形式系统来判定。La obra de Gödel demostró que el conjunto de enunciados verdaderos en aritmética no es decidible por ningún sistema formal único.ゲーデルの研究は、算術における真の命題の集合がいかなる単一の形式体系によっても判定できないことを証明した。괴델의 연구는 산술에서 참인 명제들의 집합이 어떤 단일 형식 체계로도 판정될 수 없음을 증명했다.
- Whether these planning applications meet the revised criteria is, at least in principle, a decidable question for the inspectorate. 这些规划申请是否符合修订后的标准,至少在原则上是督察局可以判定的问题。Si estas solicitudes de planificación cumplen los criterios revisados es, al menos en principio, una cuestión decidible para la inspección.これらの開発申請が改訂された基準を満たすかどうかは、少なくとも原理的には、検査局にとって判定可能な問題である。이러한 개발 신청이 개정된 기준을 충족하는지 여부는, 적어도 원칙적으로는 감사 기관이 판정할 수 있는 문제이다.
発音
使い方ガイド
場面: academic, scientific, technology
トーン: neutral
起源と歴史
From Latin decidere (to cut off, to determine), from de- (off, away) + caedere (to cut). The technical sense in logic was developed in the early 20th century by Hilbert, Gödel, and Turing.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
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