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- Negation_normal_form abstract "In mathematical logic, a formula is in negation normal form if the negation operator (, not) is only applied to variables and the only other allowed Boolean operators are conjunction (, and) and disjunction (, or). Negation normal form is not a canonical form: for example, and are equivalent, and are both in negation normal form.In classical logic and many modal logics, every formula can be brought into this form by replacing implications and equivalences by their definitions, using De Morgan's laws to push negation inwards, and eliminating double negations. This process can be represented using the following rewrite rules:A formula in negation normal form can be put into the stronger conjunctive normal form or disjunctive normal form by applying distributivity.".
- Negation_normal_form wikiPageExternalLink applet.php.
- Negation_normal_form wikiPageID "554622".
- Negation_normal_form wikiPageRevisionID "586469782".
- Negation_normal_form hasPhotoCollection Negation_normal_form.
- Negation_normal_form subject Category:Normal_forms_(logic).
- Negation_normal_form subject Category:Propositional_calculus.
- Negation_normal_form comment "In mathematical logic, a formula is in negation normal form if the negation operator (, not) is only applied to variables and the only other allowed Boolean operators are conjunction (, and) and disjunction (, or).".
- Negation_normal_form label "Forma normal da negação".
- Negation_normal_form label "Forma normal negativa".
- Negation_normal_form label "Negation normal form".
- Negation_normal_form label "Negationsnormalform".
- Negation_normal_form label "否定標準形".
- Negation_normal_form sameAs Negationsnormalform.
- Negation_normal_form sameAs Forma_normal_negativa.
- Negation_normal_form sameAs 否定標準形.
- Negation_normal_form sameAs Forma_normal_da_negação.
- Negation_normal_form sameAs m.02pfbc.
- Negation_normal_form sameAs Q1640479.
- Negation_normal_form sameAs Q1640479.
- Negation_normal_form wasDerivedFrom Negation_normal_form?oldid=586469782.
- Negation_normal_form isPrimaryTopicOf Negation_normal_form.