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- Propositional_variable abstract "In mathematical logic, a propositional variable (also called a sentential variable or sentential letter) is a variable which can either be true or false. Propositional variables are the basic building-blocks of propositional formulas, used in propositional logic and higher logics.Formulas in logic are typically built up recursively from some propositional variables, some number of logical connectives, and some logical quantifiers. Propositional variables are the atomic formulas of propositional logic. For example, in a given propositional logic, we might define a formula as follows:Every propositional variable is a formula.Given a formula X the negation ¬X is a formula.Given two formulas X and Y, and a binary connective b (such as the logical conjunction ∧), then (X b Y) is a formula. (Note the parentheses.)In this way, all of the formulas of propositional logic are built up from propositional variables as a basic unit. Propositional variables should not be confused with the metavariables which appear in the typical axioms of propositional calculus; the latter effectively range over well-formed formulae.Propositional variables are represented as nullary predicates in first order logic.".
- Propositional_variable wikiPageID "1557562".
- Propositional_variable wikiPageRevisionID "541181878".
- Propositional_variable hasPhotoCollection Propositional_variable.
- Propositional_variable subject Category:Concepts_in_logic.
- Propositional_variable subject Category:Logic_symbols.
- Propositional_variable subject Category:Propositional_calculus.
- Propositional_variable type Abstraction100002137.
- Propositional_variable type Appearance104673965.
- Propositional_variable type Attribute100024264.
- Propositional_variable type Cognition100023271.
- Propositional_variable type Communication100033020.
- Propositional_variable type Concept105835747.
- Propositional_variable type ConceptsInLogic.
- Propositional_variable type Content105809192.
- Propositional_variable type Countenance104679549.
- Propositional_variable type Expression104679738.
- Propositional_variable type Idea105833840.
- Propositional_variable type LogicSymbols.
- Propositional_variable type LogicalExpressions.
- Propositional_variable type PsychologicalFeature100023100.
- Propositional_variable type Quality104723816.
- Propositional_variable type Signal106791372.
- Propositional_variable type Symbol106806469.
- Propositional_variable comment "In mathematical logic, a propositional variable (also called a sentential variable or sentential letter) is a variable which can either be true or false. Propositional variables are the basic building-blocks of propositional formulas, used in propositional logic and higher logics.Formulas in logic are typically built up recursively from some propositional variables, some number of logical connectives, and some logical quantifiers.".
- Propositional_variable label "Propositional variable".
- Propositional_variable label "Variable proposicional".
- Propositional_variable label "Zmienna zdaniowa".
- Propositional_variable label "命题变量".
- Propositional_variable sameAs Výroková_proměnná.
- Propositional_variable sameAs Variable_proposicional.
- Propositional_variable sameAs Zmienna_zdaniowa.
- Propositional_variable sameAs m.05b5rb.
- Propositional_variable sameAs Q3492863.
- Propositional_variable sameAs Q3492863.
- Propositional_variable sameAs Propositional_variable.
- Propositional_variable wasDerivedFrom Propositional_variable?oldid=541181878.
- Propositional_variable isPrimaryTopicOf Propositional_variable.