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Definition of fallacy:

  1. An argument, or apparent argument, which professes to be decisive of the matter at issue, while in reality it is not; a sophism.
  2. Deceptive or false appearance; deceitfulness; that which misleads the eye or the mind; deception.


heresy, prejudice, sophism, paradox, phantasm, solecism, non sequitur, cavil, hallucination, deception, quibble, speciousness, spuriousness, ambiguity, irrelevancy, subterfuge, erratum, erroneousness, quirk, equivocation, quibbling, deceit, inconsistency, logic, misapprehension, falsity, misinterpretation, evasion, bias, illusion, true, reason, correct, illogicality, delusion, false belief, preconception, artifice, casuistry, invalidity, sophistry, perversion.

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