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Circular reasoning (Latin: circulus in probando, "circle in proving"; [1] also known as circular logic) is a logical fallacy in which the reasoner begins with what they are trying to end with. [2] 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 ...
Not to be confused with Calling the question. In classical rhetoric and logic, begging the question or assuming the conclusion (Latin: petītiō principiī) is an informal fallacy that occurs when an argument's premises assume the truth of the conclusion. Historically, begging the question refers to a fault in a dialectical argument in which ...
Contents. Catch-22 (logic) A catch-22 is a paradoxical situation from which an individual cannot escape because of contradictory rules or limitations. [ 1 ] The term was coined by Joseph Heller, who used it in his 1961 novel Catch-22. Catch-22s often result from rules, regulations, or procedures that an individual is subject to, but has no ...
Another core aspect of paradoxes is non-terminating recursion, in the form of circular reasoning or infinite regress. [15] When this recursion creates a metaphysical impossibility through contradiction, the regress or circularity is vicious. Again, the liar paradox is an instructive example: "This statement is false"—if the statement is true ...
Definitional retreat – changing the meaning of a word when an objection is raised. [22] Often paired with moving the goalposts (see below), as when an argument is challenged using a common definition of a term in the argument, and the arguer presents a different definition of the term and thereby demands different evidence to debunk the argument.
Informal fallacies are a form of incorrect argument in natural language. [ 4 ] An argument is a series of propositions, called the premises, together with one more proposition, called the conclusion. [ 5 ][ 1 ] The premises in correct arguments offer either deductive or defeasible support for the conclusion.
Presuppositional apologetics, shortened to presuppositionalism, is an epistemological school of Christian apologetics that examines the presuppositions on which worldviews are based, and invites comparison and contrast between the results of those presuppositions. It claims that apart from presuppositions, one could not make sense of any human ...
The argument from authority is a logical fallacy, [2] and obtaining knowledge in this way is fallible. [3][4] However, in particular circumstances, it is sound to use as a practical although fallible way of obtaining information that can be considered generally likely to be correct if the authority is a real and pertinent intellectual authority ...