释义 |
substitutivity substitutivity (ˌsʌbstɪtjuːˈtɪvɪtɪ) n1. (Logic) logic philosophy the principle that expressions with the same reference can be substituted for one another without affecting the truth-value of any context in which they occur. See also transparent context, opaque context2. (Philosophy) logic philosophy the principle that expressions with the same reference can be substituted for one another without affecting the truth-value of any context in which they occur. See also transparent context, opaque context |