tautology : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: tautology	by the DICT Development Group
3 results for tautology
From WordNet (r) 3.0 (2006) [wn]:
tautology n (logic) a statement that is necessarily true; "the statement `he is brave or he is not brave' is a tautology" useless repetition; "to say that something is `adequate enough' is a tautology"
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Tautology \Tautol"ogy\, 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. 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.
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
tautology A {proposition} which is always true. Compare: {paradox}. {The Linguistic Smarandache Tautologies, (http://www.gallup.unm.edu/~smarandache/tautolog.txt)}. (1999-07-28)