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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 | Meaning, Definition Examples - Scribbr
    In rhetoric, a tautology is the unnecessary repetition of an idea using different words (e g , “a free gift”) Tautologies are often considered to be a stylistic fault that should be avoided However, they can also be used effectively as a rhetorical device or figure of speech
  • What is a Tautology in Logic? Meaning Examples
    Tautologies differ from contingencies, which are propositions that can be true or false depending on the truth values of the simple propositions Tautological propositions are also the opposite of contradictions, which are always false Every tautology is the negation of a contradiction
  • Definition and Examples of Tautologies in English - ThoughtCo
    In grammar, a tautology is a redundancy, in particular, the needless repetition of an idea using different words Repetition of the same sense is tautology Repetition of the same sound is tautophony
  • 1. 6: Tautologies and contradictions - Mathematics LibreTexts
    The assertions A ∨ ¬ A and A ¬ A are the most important (and most common) examples of tautologies and contradictions However, they will usually arise with some other expression plugged into the variable A
  • Tautology – Definition and Examples
    A tautology is a logical statement which is true under any and all circumstances Tautologies are verified with truth tables
  • Tautology: Explanation and Examples - Grammar Monster
    Tautology: the use of two words or phrases that express the same meaning, in a way that is unnecessary and usually unintentional Here are some examples of tautology In each example, the tautological expression is shaded At that moment in time, the stars dimmed (It is always a moment in time
  • Tautology | Definition Facts | Britannica
    tautology, in logic, a statement so framed that it cannot be denied without inconsistency Thus, “All humans are mammals” is held to assert with regard to anything whatsoever that either it is not a human or it is a mammal
  • 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 It’s when a phrase or statement says the same thing twice using different words





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