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tautology    
n. 同义反复,重复

同义反复,重复

tautology
重言

tautology
同义反复

tautology
n 1: (logic) a statement that is necessarily true; "the
statement `he is brave or he is not brave' is a tautology"
2: useless repetition; "to say that something is `adequate
enough' is a tautology"

Tautology \Tau*tol"o*gy\, n. [L. tautologia, Gr. ?: cf. F.
tautologie.] (Rhet.)
A repetition of the same meaning in different words; needless
repetition of an idea in different words or phrases; a
representation of anything as the cause, condition, or
consequence of itself, as in the following lines:

The dawn is overcast, the morning lowers,
And heavily in clouds brings on the day. --Addison.
[1913 Webster]

Syn: Repetition.

Usage: {Tautology}, {Repetition}. There may be frequent
repetitions (as in legal instruments) which are
warranted either by necessity or convenience; but
tautology is always a fault, being a sameness of
expression which adds nothing to the sense or the
sound.
[1913 Webster]

83 Moby Thesaurus words for "tautology":
abundance, amplitude, battology, bedizenment, circumambages,
circumbendibus, circumlocution, cloud of words, copiousness,
diffuseness, diffusion, diffusiveness, duplication,
duplication of effort, effusion, effusiveness, embellishment,
expletive, extravagance, exuberance, fat, featherbedding,
fecundity, fertility, filling, fluency, formlessness, frill,
frills, frippery, gingerbread, gush, gushing, iteration, logorrhea,
long-windedness, luxury, macrology, needlessness, ornamentation,
outpour, overadornment, overflow, overlap, padding, palilogy,
payroll padding, periphrase, periphrasis, pleonasm, prodigality,
productivity, profuseness, profusion, prolificacy, prolificity,
prolixity, rampancy, rankness, redundance, redundancy, reiteration,
reiterativeness, repetition, repetition for effect,
repetitiousness, repetitiveness, roundabout, stammering,
stuttering, superabundance, superfluity, superfluousness,
superflux, talkativeness, tautologism, teemingness, tirade,
unnecessariness, verbality, verbiage, verbosity, wordiness


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  • Tautology (logic) - Wikipedia
    In mathematical logic, a tautology (from Ancient Greek: ταυτολογία) is a formula that is true regardless of the interpretation of its component terms, with only the logical constants having a fixed meaning It is a logical truth
  • TAUTOLOGY Definition Meaning - Merriam-Webster
    The meaning of TAUTOLOGY is needless repetition of an idea, statement, or word How to use tautology in a sentence
  • Tautology | Definition Facts | Britannica
    Tautology, in logic, a statement so framed that it cannot be denied without inconsistency The notion was first developed in the early 20th century by the American philosopher Charles Sanders Peirce, and the term itself was introduced by the Austrian-born British philosopher Ludwig Wittgenstein
  • Tautology: Explanation and Examples - Grammar Monster
    Tautology is the needless repetition of a single concept In other words, it is saying the same thing twice in different words The following are examples of tautology: a single bachelor, PIN number, ATM machine
  • Tautology in Math - GeeksforGeeks
    Tautology in mathematics is a compound statement that always evaluates to true, regardless of the truth values of its individual components This concept is fundamental in propositional logic, which deals with statements that are either true or false
  • TAUTOLOGY | English meaning - Cambridge Dictionary
    TAUTOLOGY definition: 1 the use of two words or phrases that express the same meaning, in a way that is unnecessary and… Learn more
  • 10 Tautology Examples (2026) - Helpful Professor
    Tautology is a special or unintentional use of the same root words in a phrase or sentence or an unreasonable repetition of the same word in a statement Tautology, in its most basic definition, is a useless repetition
  • Tautology - definition of tautology by The Free Dictionary
    tautology needless repetition of a concept in word or phrase; redundancy or pleonasm Also tautologism — tautologist, n — tautological, tautologous, adj
  • TAUTOLOGY definition and meaning | Collins English Dictionary
    Tautology is the use of different words to say the same thing twice in the same statement 'The money should be adequate enough' is an example of tautology The tautology can come across as immature
  • Definition and Examples of Tautologies in English - ThoughtCo
    In rhetoric and logic, a tautology is a statement that is true by its form alone Examples of tautology include phrases like 'pair of twins' and 'either guilty or not guilty'





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