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Circular reasoning

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and fails to persuade those who don't already accept it. Other ways to express this are that there is no reason to accept the premises unless one already believes the conclusion, or that the premises provide no independent ground or evidence for the conclusion. Circular reasoning is closely related
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in which the reasoner begins with what they are trying to end with. Circular reasoning is not a formal logical fallacy, but a pragmatic defect in an argument whereby the premises are just as much in need of proof or evidence as the conclusion. As a consequence, the argument becomes a matter of
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if they seek to justify their implicit assumption that laws which held true in the past will also hold true in the future. Since the principle of the uniformity of nature is itself an inductive principle, any justification for induction must be circular. But as
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note that "using the scientific method to judge the scientific method is circular reasoning". Scientists attempt to discover the laws of nature and to predict what will happen in the future, based on those laws. The laws of nature are arrived at through
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The reciprocal trope occurs when what ought to be confirmatory of the object under investigation needs to be made convincing by the object under investigation; then, being unable to take either in order to establish the other, we
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Circular reasoning is often of the form: "A is true because B is true; B is true because A is true." Circularity can be difficult to detect if it involves a longer chain of propositions.
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observed, "The method of 'postulating' what we want has many advantages; they are the same as the advantages of theft over honest toil".
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is healthy because it results in health benefits, and it has health benefits because it is healthy".
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Reason and responsibility: readings in some basic problems of philosophy
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described the problem of circular reasoning as "the reciprocal
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Logical fallacy in which the conclusion provides the premise
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Nolt, John Eric; Rohatyn, Dennis; Varzi, Achille (1998).
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who includes the problem of circular reasoning among his
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The problem of circular reasoning has been noted in
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baculum 1034:Faulty generalization 725:Argument from fallacy 328: 297: 209:Philosophy portal 1601:Invincible ignorance 1407:Reductio ad Stalinum 1393:Reductio ad Hitlerum 1349:Wisdom of repugnance 1116:Moving the goalposts 981:Illicit transference 906:Begging the question 827:Undistributed middle 735:Mathematical fallacy 710:Affirming a disjunct 603:i., from Annas, J., 362:problem of induction 274:begging the question 255:circulus in probando 181:Münchhausen trilemma 143:Similar philosophies 1694:Philosophical logic 1334:Parade of horribles 1310:In-group favoritism 1136:Syntactic ambiguity 779:Syllogistic fallacy 702:propositional logic 412:Circular definition 354:inductive reasoning 162:Academic skepticism 81:Agrippa the Skeptic 1699:Informal fallacies 1420:Poisoning the well 1237:Proof by assertion 1212:Texas sharpshooter 1146:Questionable cause 1083:Slothful induction 1042:Anecdotal evidence 902:Circular reasoning 797:Exclusive premises 759:Illicit conversion 422:Circular reporting 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Index

Circular argument
a series
Pyrrhonism

Pyrrho
Timon of Phlius
Aenesidemus
Agrippa the Skeptic
Sextus Empiricus
Ataraxia
Acatalepsy
Adiaphora
Aporia
Dogma
Epoché
Empiric school
Epilogism
Academic skepticism
Münchhausen trilemma
Benson Mates
Robert Fogelin
Philosophy portal
v
t
e
Latin
logical fallacy
faith
begging the question
Alkaline water

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