petitio principii

[ pi-tish-ee-oh prin-sip-ee-ahy; Latin pe-tee-ti-oh pring-kip-i-ee ]

nounLogic.
  1. a fallacy in reasoning resulting from the assumption of that which in the beginning was set forth to be proved; begging the question.

Origin of petitio principii

1
1525–35; <Medieval Latin petītiō prīncipiī, translation of Greek tò en archêi aiteîsthai the assumption at the outset

Words Nearby petitio principii

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How to use petitio principii in a sentence

British Dictionary definitions for petitio principii

petitio principii

/ (pɪˈtɪʃɪˌəʊ prɪnˈkɪpɪˌaɪ) /


noun
  1. logic a form of fallacious reasoning in which the conclusion has been assumed in the premises; begging the question: Sometimes shortened to: petitio

Origin of petitio principii

1
C16: Latin, translation of Greek to en arkhei aiteisthai an assumption at the beginning

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