<logic> A proposition which is always true.

Compare: paradox.

The Linguistic Smarandache Tautologies,.

(01 Apr 1999)

tautological, tautological probability, tautological set < Prev | Next > tautology, tautomenial, tautomeric

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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)

Synonyms: Repetition.

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.

Origin: L. Tautologia, Gr., cf. F. Tautologie.

(01 Mar 1998)