Category

Syllogistic fallacies

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fallacy of four terms

formal fallacy that occurs when a syllogism has four (or more) terms

association fallacy

informal inductive fallacy of the hasty-generalization or red-herring type

accident fallacy

informal fallacy

incorrect proposition that forms the basis of an argument

converse accident

informal fallacy when a rule that applies only to an exceptional case is wrongly applied to all cases in general

affirming a disjunct

existential fallacy

type of formal fallacy

fallacy of the undistributed middle

logical fallacy

immediate inference

logical inference from a single statement

affirmative conclusion from a negative premise

logical fallacy

formal fallacy committed in a categorical syllogism that is invalid because its major term is undistributed in the major premise but distributed in the conclusion

type of fallacy in modal logic

fallacy of exclusive premises

syllogistic fallacy committed in a categorical syllogism that is invalid because both of its premises are negative