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petitio principii

(pi tis̸h′ē ō′ prin sip′ē ī′)

Logic the fallacy of assuming in the premise of an argument the conclusion which is to be proved

Origin: L, a begging of the question

See petitio principii in American Heritage Dictionary 4

noun
Logic

The fallacy of assuming in the premise of an argument that which one wishes to prove in the conclusion; a begging of the question.

Origin:

Origin: Medieval Latin petītiō prīncipiī

Origin: : Latin petītiō, request

Origin: + Latin prīncipiī

Origin: , genitive of prīncipium, beginning

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