- disjunction of propositions
- мат. дизъюнкция предложений
Большой англо-русский и русско-английский словарь. 2001.
disjunction of propositions
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Disjunction and existence properties — In mathematical logic, the disjunction property is satisfied by a logic if whenever a sentence is a theorem, then either ϕ is a theorem, or ψ is a theorem. The existence property or witness property is satisfied by a logic if whenever a sentence… … Wikipedia
Logical disjunction — Disjunction redirects here. For separation of chromosomes, see Meiosis. For disjunctions in distribution, see Disjunct distribution. Venn diagram of the logical disjunction of A and B … 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
exclusive/inclusive disjunction — The disjunction of two propositions, p or q, is represented in logic by p ∨q . This is evaluated as true if both p and q are true, and is called inclusive disjunction (‘vel’). A different notion, exclusive disjunction, is defined true only when… … Philosophy dictionary
inclusive disjunction — noun Date: 1942 a complex sentence in logic that is true when either or both of its constituent propositions are true see truth table table … New Collegiate Dictionary
logic — logicless, adj. /loj ik/, n. 1. the science that investigates the principles governing correct or reliable inference. 2. a particular method of reasoning or argumentation: We were unable to follow his logic. 3. the system or principles of… … Universalium
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
Boolean algebra (logic) — For other uses, see Boolean algebra (disambiguation). Boolean algebra (or Boolean logic) is a logical calculus of truth values, developed by George Boole in the 1840s. It resembles the algebra of real numbers, but with the numeric operations of… … Wikipedia
Boolean algebra — This article discusses the subject referred to as Boolean algebra. For the mathematical objects, see Boolean algebra (structure). Boolean algebra, as developed in 1854 by George Boole in his book An Investigation of the Laws of Thought,[1] is a… … Wikipedia
formal logic — the branch of logic concerned exclusively with the principles of deductive reasoning and with the form rather than the content of propositions. [1855 60] * * * Introduction the abstract study of propositions, statements, or assertively used … Universalium
Boolean algebra (introduction) — Boolean algebra, developed in 1854 by George Boole in his book An Investigation of the Laws of Thought , is a variant of ordinary algebra as taught in high school. Boolean algebra differs from ordinary algebra in three ways: in the values that… … Wikipedia
