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Argument from ignorance. Argument from ignorance (from Latin: argumentum ad ignorantiam), also known as appeal to ignorance (in which ignorance represents "a lack of contrary evidence"), is a fallacy in informal logic. The fallacy is committed when one asserts that a proposition is true because it has not yet been proven false or a proposition ...
Argument from ignorance (appeal to ignorance, argumentum ad ignorantiam) – assuming that a claim is true because it has not been or cannot be proven false, or vice versa. [ 61 ] Argument from incredulity (appeal to common sense) – "I cannot imagine how this could be true; therefore, it must be false."
Irrelevant conclusion. An irrelevant conclusion, [1] also known as ignoratio elenchi (Latin for 'ignoring refutation') or missing the point, is the informal fallacy of presenting an argument whose conclusion fails to address the issue in question. It falls into the broad class of relevance fallacies. [2]
A formal fallacy, deductive fallacy, logical fallacy or non sequitur (Latin for "it does not follow") is a flaw in the structure of a deductive argument that renders the argument invalid. The flaw can be expressed in the standard system of logic. [ 1 ] Such an argument is always considered to be wrong.
For the informal fallacy that applies a rule beyond its scope, see Accident (fallacy). The association fallacy is a formal logical fallacy that asserts that properties of one thing must also be properties of another thing if both things belong to the same group. For example, a fallacious arguer may claim that "bears are animals, and bears are ...
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.
To make an argument from silence (Latin: argumentum ex silentio) is to express a conclusion that is based on the absence of statements in historical documents, rather than their presence. [ 2 ][ 3 ] In the field of classical studies, it often refers to the assertion that an author is ignorant of a subject, based on the lack of references to it ...
Appeal to the stone, also known as argumentum ad lapidem, is a logical fallacy that dismisses an argument as untrue or absurd. The dismissal is made by stating or reiterating that the argument is absurd, without providing further argumentation.