tautology

• Substantivo que designa uma afirmação necessariamente verdadeira em virtude de sua forma lógica, ou a repetição desnecessária da mesma ideia ou frase com outras palavras.

A noun referring to a statement that is necessarily true by logical form, or the unnecessary repetition of an idea or phrase using different words.

1. Logical truthC1formal

   A statement that is always true by its logical form, regardless of the truth of its components.

   Verdade lógica

   • In logic, 'A or not A' is a classic tautology.
   • The statement 'either it is raining or it is not raining' is a tautology.
   • Mathematicians often use tautologies to prove other theorems.

   Antônimoscontradictionfallacy

2. Useless repetitionB2formal

   The unnecessary and often redundant repetition of an idea, statement, or word.

   Tautologia

   • Saying 'free gift' is a common tautology.
   • The phrase 'past history' is a tautology because history is always about the past.
   • His speech was full of tautologies, like 'new innovation' and 'added bonus'.

   Sinônimospleonasmredundancyreiterationrepetitionwordiness