全称量化 Universal quantification
(重定向自Universal closure)
在谓词逻辑中,全称量化是尝试形式化某个事物(逻辑谓词)对于所有事物或所有有关的事物都为真的概念。结果的陈述是全称量化后的陈述,我们在谓词上有了全称量化。在符号逻辑中,全称量词(典型的"∀")是用来指示全称量化的符号。
单词 | Universal closure |
释义 |
Universal closure
中文百科
全称量化 Universal quantification(重定向自Universal closure)
在谓词逻辑中,全称量化是尝试形式化某个事物(逻辑谓词)对于所有事物或所有有关的事物都为真的概念。结果的陈述是全称量化后的陈述,我们在谓词上有了全称量化。在符号逻辑中,全称量词(典型的"∀")是用来指示全称量化的符号。
英语百科
Universal quantification 全称量化(重定向自Universal closure)
In predicate logic, a universal quantification is a type of quantifier, a logical constant which is interpreted as "given any" or "for all". It expresses that a propositional function can be satisfied by every member of a domain of discourse. In other words, it is the predication of a property or relation to every member of the domain. It asserts that a predicate within the scope of a universal quantifier is true of every value of a predicate variable. |
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