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...to support their conclusion. They can be categorized as formal or informal fallacies depending on whether they belong to formal or informal logic. Logic has mos ...fallacies are fallacies within the scope of formal logic whereas informal fallacies belong to informal logic.<ref name="Hansen"/> ...

...oks.google.com/books?id=4M6rBAAAQBAJ&pg=PA87 87]}} }}</ref> For example, [[propositional logic]] only focuses on inferences based on [[logical connective]]s, like " ...ince they may miss patterns for which they were not intended. For example, propositional logic can be used to show that the following ordinary language argument is ...

...t of their topic and content. Informal logic is associated with [[informal fallacies]], [[critical thinking]], and [[argumentation theory]]. Informal logic exam ...ments that fall short of the standards of correct reasoning often embody [[fallacies]]. Systems of logic are theoretical frameworks for assessing the correctnes ...

{{defn |1=The formulas ¬ (¬ A → A) and ¬ (A → ¬A) in [[propositional logic]]; they are theorems in [[connexive logic]] but not in [[classical lo {{defn |1=The formulas (A → B) → ¬ (A → ¬ B) and (A → ¬ B) → ¬ (A → B) in [[propositional logic]]; they are theorems in [[connexive logic]] but not in [[classical lo ...