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High Quality Content by WIKIPEDIA articles!In propositional logic, the inference rules double negative elimination (also called double negation elimination, double negative introduction, double negation introduction, or simply double negation) allow deriving the double negative equivalent by adding (for double negative introduction) or removing (for double negative elimination) a pair of negation signs.Double negative elimination is a theorem of classical logic, but not of weaker logics such as intuitionistic logic and minimal logic. Because of their constructive flavor, a statement such as…mehr

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High Quality Content by WIKIPEDIA articles!In propositional logic, the inference rules double negative elimination (also called double negation elimination, double negative introduction, double negation introduction, or simply double negation) allow deriving the double negative equivalent by adding (for double negative introduction) or removing (for double negative elimination) a pair of negation signs.Double negative elimination is a theorem of classical logic, but not of weaker logics such as intuitionistic logic and minimal logic. Because of their constructive flavor, a statement such as It's not the case that it's not raining is weaker than It's raining.