negation symbol

См. также в других словарях:

• Negation — Verneinung; Dementierung * * * Ne|ga|ti|on 〈f. 20〉 1. Verneinung, Ablehnung; Ggs Affirmation, Position (7) 2. 〈Gramm.〉 Verneinungswort; → Lexikon der Sprachlehre [<lat. negatio] * * * Ne|ga|ti|on, die; , en [lat. negatio, zu: negare, ↑… …   Universal-Lexikon

• Prime (symbol) — This article is about the symbol. For the type of number, see Prime number. For other uses, see Prime (disambiguation). ′ Prime Punc …   Wikipedia

• Stable model semantics — The concept of a stable model, or answer set, is used to define a declarative semantics for logic programs with negation as failure. This is one of several standard approaches to the meaning of negation in logic programming, along with program… …   Wikipedia

• Tilde — For the baseball player known as the Big Tilde, see Magglio Ordóñez.  ◌̃ Tilde Punctuation …   Wikipedia

• Begriffsschrift — is the title of a short book on logic by Gottlob Frege, published in 1879, and is also the name of the formal system set out in that book. Begriffsschrift is usually translated as concept writing or concept notation ; the full title of the book… …   Wikipedia

• Recursive definition — A recursive definition or inductive definition is one that defines something in terms of itself (that is, recursively), albeit in a useful way. For it to work, the definition in any given case must be well founded, avoiding an infinite regress.… …   Wikipedia

• Negational normal form — Negative normal form is way to represent the formula by keeping the negation symbol only to the literals. If α and φ are boolean formulas, then α φ , α φ, α, α φ are all boolean formulas. The boolean formulas are made up of literals which are… …   Wikipedia

• First-order logic — is a formal logical system used in mathematics, philosophy, linguistics, and computer science. It goes by many names, including: first order predicate calculus, the lower predicate calculus, quantification theory, and predicate logic (a less… …   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

• 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

• Logical connective — This article is about connectives in classical logic. For connectors in natural languages, see discourse connective. For connectives and operators in other logics, see logical constant. For other logical symbols, see table of logic symbols. In… …   Wikipedia