begging the question

type of fallacy, where a proposition is assumed as a premise, which itself needs a proof and directly entails the conclusion

In classical rhetoric and logic, begging the question is an informal fallacy that occurs when an argument's premises assume the truth of the conclusion, instead of supporting it. It is a type of circular reasoning: an argument that requires that the desired conclusion be true. This often occurs in an indirect way such that the fallacy's presence is hidden, or at least not easily apparent.In modern vernacular usage, however, begging the question is often used to mean "raising the question" or "suggesting the question". Sometimes it is confused with "dodging the question", an attempt to avoid it.The phrase begging the question originated in the 16th century as a mistranslation of the Latin petitio principii, which in turn was a mistranslation of the Greek for "assuming the conclusion".
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