surjection
121bijection — noun Etymology: 1bi + jection (as in injection) Date: 1963 a mathematical function that is a one to one and onto mapping compare injection, surjection • bijective adjective …
122injection — noun Date: 15th century 1. a. an act or instance of injecting b. the placing of an artificial satellite or a spacecraft into an orbit or on a trajectory; also the time or place at which injection occurs 2. something (as a medication) that is… …
123Dual space — In mathematics, any vector space, V, has a corresponding dual vector space (or just dual space for short) consisting of all linear functionals on V. Dual vector spaces defined on finite dimensional vector spaces can be used for defining tensors… …
124Mathematical logic — (also known as symbolic logic) is a subfield of mathematics with close connections to foundations of mathematics, theoretical computer science and philosophical logic.[1] The field includes both the mathematical study of logic and the… …
125Parallelepiped — In geometry, a parallelepiped (now usually pronEng|ˌpærəlɛlɪˈpɪpɛd, ˌpærəlɛlɪˈpaɪpɛd, pɪd; traditionally IPA|/ˌpærəlɛlˈʔɛpɪpɛd/ [ Oxford English Dictionary 1904; Webster s Second International 1947] in accordance with its etymology in Greek… …
126Ring homomorphism — In ring theory or abstract algebra, a ring homomorphism is a function between two rings which respects the operations of addition and multiplication. More precisely, if R and S are rings, then a ring homomorphism is a function f : R → S such that …
127Semigroup — This article is about the algebraic structure. For applications to differential equations, see C0 semigroup. In mathematics, a semigroup is an algebraic structure consisting of a set together with an associative binary operation. A semigroup… …
128Separable space — In mathematics a topological space is called separable if it contains a countable dense subset; that is, there exists a sequence { x n } {n=1}^{infty} of elements of the space such that every nonempty open subset of the space contains at least… …
