A truly fine example of
arguing in a circle.
"
In
logic,
begging the question has traditionally described a type of
logical fallacy,
petitio principii, in which the conclusion of an argument is implicitly or explicitly assumed in one of the premises
[1]. Stephen Barker explains the fallacy in
The Elements of Logic: "If the premises are related to the conclusion in such an intimate way that the speaker and listeners could not have less reason to doubt the premise than they have to doubt the conclusion, then the argument is worthless as a proof, even though the link between premises and conclusion may have the most case-iron rigor".
[1] In other words, the argument fails to prove anything because it takes for granted what it is supposed to prove.
Begging the question is related to the fallacy known as
circular argument,
circulus in probando,
vicious circle or
circular reasoning. As a concept in
logic the first known definition in the West is by the
Greek philosopher Aristotle around
350 B.C., in the
Prior Analytics.
The phrase is sometimes used to simply mean "suggests the question". This recasting of the term more directly describes a related fallacy, known as the
Fallacy of many questions, that occurs when the evidence given for a proposition is as much in need of proof as the proposition itself.
Regards,
Scott