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Meaning of postulate

pos•tu•late

Pronunciation: (v.pos'chu-lāt"n.pos'chu-lit, -lāt"), [key]
— v., n. -lat•ed, -lat•ing,
—v.t.
  1. to ask, demand, or claim.
  2. to claim or assume the existence or truth of, esp. as a basis for reasoning or arguing.
  3. to assume without proof, or as self-evident; take for granted.
  4. to assume as a postulate.
—n.
  1. something taken as self-evident or assumed without proof as a basis for reasoning.
  2. a proposition that requires no proof, being self-evident, or that is for a specific purpose assumed true, and that is used in the proof of other propositions; axiom.
  3. a fundamental principle.
  4. a necessary condition; prerequisite.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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