| 释义 |
tautological, a.|tɔːtəʊˈlɒdʒɪkəl|
[f. as prec. + -al1: see -ical.]
1. a. Pertaining to, characterized by, involving, or using tautology; repeating the same word, or the same notion in different words.
1620T. Granger Div. Logike 387 Lest thy discourse be tedious, Tautologicall, erroneous. 1670Blount Law Dict. s.v. Alnager, Measurer, and Alneger, which last, though it be a Tautological expression (Aulnage and Measure, being the same thing denoted in two Languages) yet long usage and custom have brought them to distinct Offices. 1800in Four C. Eng. Lett. (1880) 355 Now and then, in the career of declamation, he becomes tautological and ineffective. 1869C. M. Ingleby Introd. Metaph. ii. ii. 176 One writer..desperately declares that the Laws of Motion are mere truisms, or tautological judgments.
b. Mod. Logic. Characterized by or involving tautology (in sense f).
1922tr. Wittgenstein's Tractatus 97 In the one case the proposition is true for all the truth-possibilities of the elementary propositions. We say that the truth-conditions are tautological. 1926F. P. Ramsey in Proc. London Math. Soc. XXV. 341 The idea to be defined is one of the essential sides of mathematical propositions, their content, and their form. Their content must be completely generalized, and their form tautological. 1933Mind XLII. 41 Each postulate functions in limiting the ranges of the variables in such a manner that any change is one postulate..involves a reciprocal change in its other parts, which change causes it to remain analytic or tautological. 1950R. Carnap Logical Found. Probability iv. 289 With respect to the tautological evidence ‘t’. 1971G. Hunter Metalogic iii. 171 Suppose that A is an instance of a tautological schema of Q.
2. Of an echo: Repeating the same sound several times. ? Obs.
1677Plot Oxfordsh. 7 These return syllables and words, the same oftentimes repeated, and may therefore be stiled Tautological Echo's. 1807Joyce Sci. Dial. xiii. (1846) 232 Called tautological or babbling echoes.
†3. loosely. Of the nature of a repetition, identical (with). Obs. rare—1.
1689G. Harvey Curing Dis. by Expect. xvi. 125 Compound Waters..tautological the one with the other.
Hence tautologiˈcality, the quality of being tautological.
1936J. R. Weinberg Exam. Logical Positivism ii. 80 The formal property of certain combinations of symbols, which is called tautologicality, is solely responsible for the unconditional truth of the truths of logic. |