- conditional disjunction
- логикаусловная дизъюнкция
English-Russian scientific dictionary. 2008.
conditional disjunction
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Conditional disjunction — In logic, the term conditional disjunction can refer to: conditioned disjunction, a ternary logical connective introduced by Alonzo Church; a rule in classical logic that the material conditional ¬p → q is equivalent to the disjunction p ∨ q, so… … Wikipedia
Conditional quantifier — In logic, a conditional quantifier is a kind of Lindström quantifier (or generalized quantifier) QA that, relative to a classical model A, satisfies some or all of the following conditions ( X and Y range over arbitrary formulas in one free… … Wikipedia
Conditioned disjunction — In logic, conditioned disjunction (sometimes called conditional disjunction) is a ternary logical connective introduced by Church.[1]. Given operands p, q, and r, which represent truth valued propositions, the meaning of the conditioned… … Wikipedia
Logical implication — In logic and mathematics, logical implication is a logical relation that holds between a set T of formulae and a formula B when every model (or interpretation or valuation) of T is also a model of B . In symbols,# T models B, # T Rightarrow B # T … Wikipedia
Propositional calculus — In mathematical logic, a propositional calculus or logic (also called sentential calculus or sentential logic) is a formal system in which formulas of a formal language may be interpreted as representing propositions. A system of inference rules… … Wikipedia
logic, history of — Introduction the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic There was a medieval tradition according to which the Greek philosopher … Universalium
Paraconsistent logic — A paraconsistent logic is a logical system that attempts to deal with contradictions in a discriminating way. Alternatively, paraconsistent logic is the subfield of logic that is concerned with studying and developing paraconsistent (or… … Wikipedia
Method of analytic tableaux — A graphical representation of a partially built propositional tableau In proof theory, the semantic tableau (or truth tree) is a decision procedure for sentential and related logics, and a proof procedure for formulas of first order logic. The… … Wikipedia
Truth table — A truth table is a mathematical table used in logic specifically in connection with Boolean algebra, boolean functions, and propositional calculus to compute the functional values of logical expressions on each of their functional arguments, that … Wikipedia
List of topics in logic — This is a list of topics in logic.See also: List of mathematical logic topicsAlphabetical listAAbacus logic Abduction (logic) Abductive validation Affine logic Affirming the antecedent Affirming the consequent Antecedent Antinomy Argument form… … Wikipedia
Clause (logic) — For other uses, see Clause (disambiguation). In logic, a clause is a finite disjunction of literals.[1] Clauses are usually written as follows, where the symbols li are literals: In some cases, clauses are written (or defined) as sets of literals … Wikipedia
