來自希臘語 tautologos,同義反複，重說，重述，來自 tauto,相同的，自身的，即 the auto,-log, 說話，詞源同 dialogue.引申詞義贅述。
英文詞源
tautology (n.)
1570s, from Late Latin tautologia "representation of the same thing in other words," from Greek tautologia, from tautologos "repeating what has been said," from tauto "the same" (contraction of to auto, with to "the" + auto, see auto-) + -logos "saying," related to legein "to say" (see lecture (n.)). Related: Tautological.
雙語例句
1. Some propositions are true for any truth value of their variables . Such propositions are called tautology.
某些命題對於變元後的任何一種真值狀況,它均為真,這樣的命題稱為重言式.
來自辭典例句
2. A title whose seeming tautology made it clear that she was primarily interested in poetry.
看起來有點累贅的刊名顯示她的主要興趣是詩.
來自辭典例句
3. Modern logicians regard it as little more than tautology.
現代的邏輯學家僅僅把它看作同義反複.
來自互聯網
4. Is the Proof of the Internal Energy being State Function a Tautology?
關於內能是狀態函數的證明是循環證明 嗎 ?
來自互聯網
5. What's the first excellence in a lawyer? Tautology. What the second? Tautology.