Faster access than browser!
54 relations: Adjoint functors, APL (programming language), Axiom, ㅏ, Begriffsschrift, Binary relation, Box-drawing character, Bracket, Cambridge University Press, Category theory, Claudian letters, Combinatorics, Computer science, Dash, Double turnstile, Empty set, FOCAL character set, Formal language, Formal proof, Formal system, Functor, Gottlob Frege, Heta, Hewlett-Packard, HP Roman, HP-41C, HP-42S, Interpretation (logic), Judgment (mathematical logic), LaTeX, List of logic symbols, List of mathematical symbols, Logical consequence, Mathematical logic, Metalogic, MIT Press, Nordic Journal of Philosophical Logic, Partition (number theory), Per Martin-Löf, Phonetic symbols in Unicode, Proof theory, Propositional calculus, Rule of inference, Sequent, Sequent calculus, Syntax (logic), TeX, Theorem, Theory (mathematical logic), Turnstile, ..., Typed lambda calculus, Typewriter, Unicode, Vertical bar. Expand index (4 more) »
Adjoint functors
In mathematics, specifically category theory, adjunction is a possible relationship between two functors.
New!!: Turnstile (symbol) and Adjoint functors · See more »
APL (programming language)
APL (named after the book A Programming Language) is a programming language developed in the 1960s by Kenneth E. Iverson.
New!!: Turnstile (symbol) and APL (programming language) · See more »
Axiom
An axiom or postulate is a statement that is taken to be true, to serve as a premise or starting point for further reasoning and arguments.
New!!: Turnstile (symbol) and Axiom · See more »
ㅏ
(ah) is one of the Korean hangul.
New!!: Turnstile (symbol) and ㅏ · See more »
Begriffsschrift
Begriffsschrift (German for, roughly, "concept-script") is a book on logic by Gottlob Frege, published in 1879, and the formal system set out in that book.
New!!: Turnstile (symbol) and Begriffsschrift · See more »
Binary relation
In mathematics, a binary relation on a set A is a set of ordered pairs of elements of A. In other words, it is a subset of the Cartesian product A2.
New!!: Turnstile (symbol) and Binary relation · See more »
Box-drawing character
Box-drawing characters, also known as line-drawing characters, are a form of semigraphics widely used in text user interfaces to draw various geometric frames and boxes.
New!!: Turnstile (symbol) and Box-drawing character · See more »
Bracket
A bracket is a tall punctuation mark typically used in matched pairs within text, to set apart or interject other text.
New!!: Turnstile (symbol) and Bracket · See more »
Cambridge University Press
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
New!!: Turnstile (symbol) and Cambridge University Press · See more »
Category theory
Category theory formalizes mathematical structure and its concepts in terms of a labeled directed graph called a category, whose nodes are called objects, and whose labelled directed edges are called arrows (or morphisms).
New!!: Turnstile (symbol) and Category theory · See more »
Claudian letters
The Claudian letters were developed by, and named after, the Roman Emperor Claudius (reigned 41–54).
New!!: Turnstile (symbol) and Claudian letters · See more »
Combinatorics
Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures.
New!!: Turnstile (symbol) and Combinatorics · See more »
Computer science
Computer science deals with the theoretical foundations of information and computation, together with practical techniques for the implementation and application of these foundations.
New!!: Turnstile (symbol) and Computer science · See more »
Dash
The dash is a punctuation mark that is similar in appearance to and, but differs from these symbols in both length and height.
New!!: Turnstile (symbol) and Dash · See more »
Double turnstile
In logic, the symbol ⊨, ⊧ or \models is called the double turnstile.
New!!: Turnstile (symbol) and Double turnstile · See more »
Empty set
In mathematics, and more specifically set theory, the empty set or null set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.
New!!: Turnstile (symbol) and Empty set · See more »
FOCAL character set
In computing FOCAL character set refers to a group of 8-bit single byte character sets introduced by Hewlett-Packard since 1979.
New!!: Turnstile (symbol) and FOCAL character set · See more »
Formal language
In mathematics, computer science, and linguistics, a formal language is a set of strings of symbols together with a set of rules that are specific to it.
New!!: Turnstile (symbol) and Formal language · See more »
Formal proof
A formal proof or derivation is a finite sequence of sentences (called well-formed formulas in the case of a formal language), each of which is an axiom, an assumption, or follows from the preceding sentences in the sequence by a rule of inference.
New!!: Turnstile (symbol) and Formal proof · See more »
Formal system
A formal system is the name of a logic system usually defined in the mathematical way.
New!!: Turnstile (symbol) and Formal system · See more »
Functor
In mathematics, a functor is a map between categories.
New!!: Turnstile (symbol) and Functor · See more »
Gottlob Frege
Friedrich Ludwig Gottlob Frege (8 November 1848 – 26 July 1925) was a German philosopher, logician, and mathematician.
New!!: Turnstile (symbol) and Gottlob Frege · See more »
Heta
Heta is a conventional name for the historical Greek alphabet letter Eta (Η) and several of its variants, when used in their original function of denoting the consonant.
New!!: Turnstile (symbol) and Heta · See more »
Hewlett-Packard
The Hewlett-Packard Company (commonly referred to as HP) or shortened to Hewlett-Packard was an American multinational information technology company headquartered in Palo Alto, California.
New!!: Turnstile (symbol) and Hewlett-Packard · See more »
HP Roman
In computing HP Roman is a family of character sets consisting of HP Roman Extension, HP Roman-8, HP Roman-9 and several variants.
New!!: Turnstile (symbol) and HP Roman · See more »
HP-41C
The HP-41C series are programmable, expandable, continuous memory handheld RPN calculators made by Hewlett-Packard from 1979 to 1990.
New!!: Turnstile (symbol) and HP-41C · See more »
HP-42S
The HP-42S RPN Scientific is a programmable RPN Scientific hand held calculator introduced by Hewlett Packard in 1988.
New!!: Turnstile (symbol) and HP-42S · See more »
Interpretation (logic)
An interpretation is an assignment of meaning to the symbols of a formal language.
New!!: Turnstile (symbol) and Interpretation (logic) · See more »
Judgment (mathematical logic)
In mathematical logic, a judgment (or judgement) or assertion is a statement or enunciation in the metalanguage.
New!!: Turnstile (symbol) and Judgment (mathematical logic) · See more »
LaTeX
LaTeX (or; a shortening of Lamport TeX) is a document preparation system.
New!!: Turnstile (symbol) and LaTeX · See more »
List of logic symbols
In logic, a set of symbols is commonly used to express logical representation.
New!!: Turnstile (symbol) and List of logic symbols · See more »
List of mathematical symbols
This is a list of symbols used in all branches of mathematics to express a formula or to represent a constant.
New!!: Turnstile (symbol) and List of mathematical symbols · See more »
Logical consequence
Logical consequence (also entailment) is a fundamental concept in logic, which describes the relationship between statements that hold true when one statement logically follows from one or more statements.
New!!: Turnstile (symbol) and Logical consequence · See more »
Mathematical logic
Mathematical logic is a subfield of mathematics exploring the applications of formal logic to mathematics.
New!!: Turnstile (symbol) and Mathematical logic · See more »
Metalogic
Metalogic is the study of the metatheory of logic.
New!!: Turnstile (symbol) and Metalogic · See more »
MIT Press
The MIT Press is a university press affiliated with the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts (United States).
New!!: Turnstile (symbol) and MIT Press · See more »
Nordic Journal of Philosophical Logic
The Nordic Journal of Philosophical Logic was an international journal of philosophy started in May 1996.
New!!: Turnstile (symbol) and Nordic Journal of Philosophical Logic · See more »
Partition (number theory)
In number theory and combinatorics, a partition of a positive integer n, also called an integer partition, is a way of writing n as a sum of positive integers.
New!!: Turnstile (symbol) and Partition (number theory) · See more »
Per Martin-Löf
Per Erik Rutger Martin-Löf (born May 8, 1942) is a Swedish logician, philosopher, and mathematical statistician.
New!!: Turnstile (symbol) and Per Martin-Löf · See more »
Phonetic symbols in Unicode
Unicode supports several phonetic scripts and notations through the existing writing systems and the addition of extra blocks with phonetic characters.
New!!: Turnstile (symbol) and Phonetic symbols in Unicode · See more »
Proof theory
Proof theory is a major branchAccording to Wang (1981), pp.
New!!: Turnstile (symbol) and Proof theory · See more »
Propositional calculus
Propositional calculus is a branch of logic.
New!!: Turnstile (symbol) and Propositional calculus · See more »
Rule of inference
In logic, a rule of inference, inference rule or transformation rule is a logical form consisting of a function which takes premises, analyzes their syntax, and returns a conclusion (or conclusions).
New!!: Turnstile (symbol) and Rule of inference · See more »
Sequent
In mathematical logic, a sequent is a very general kind of conditional assertion.
New!!: Turnstile (symbol) and Sequent · See more »
Sequent calculus
Sequent calculus is, in essence, a style of formal logical argumentation where every line of a proof is a conditional tautology (called a sequent by Gerhard Gentzen) instead of an unconditional tautology.
New!!: Turnstile (symbol) and Sequent calculus · See more »
Syntax (logic)
In logic, syntax is anything having to do with formal languages or formal systems without regard to any interpretation or meaning given to them.
New!!: Turnstile (symbol) and Syntax (logic) · See more »
TeX
TeX (see below), stylized within the system as TeX, is a typesetting system (or "formatting system") designed and mostly written by Donald Knuth and released in 1978.
New!!: Turnstile (symbol) and TeX · See more »
Theorem
In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and generally accepted statements, such as axioms.
New!!: Turnstile (symbol) and Theorem · See more »
Theory (mathematical logic)
In mathematical logic, a theory (also called a formal theory) is a set of sentences in a formal language.
New!!: Turnstile (symbol) and Theory (mathematical logic) · See more »
Turnstile
A turnstile, also called a baffle gate or turnstyle, is a form of gate which allows one person to pass at a time.
New!!: Turnstile (symbol) and Turnstile · See more »
Typed lambda calculus
A typed lambda calculus is a typed formalism that uses the lambda-symbol (\lambda) to denote anonymous function abstraction.
New!!: Turnstile (symbol) and Typed lambda calculus · See more »
Typewriter
A typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer's movable type.
New!!: Turnstile (symbol) and Typewriter · See more »
Unicode
Unicode is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems.
New!!: Turnstile (symbol) and Unicode · See more »
Vertical bar
The vertical bar (|) is a computer character and glyph with various uses in mathematics, computing, and typography.
New!!: Turnstile (symbol) and Vertical bar · See more »
Redirects here:
Right tack, Turnstile (mathematical logic), Turnstile symbol, Vdash, ⊢, ⊦, ⟚.
References
[1] https://en.wikipedia.org/wiki/Turnstile_(symbol)
