(monomorphism)
81Simplicial set — In mathematics, a simplicial set is a construction in categorical homotopy theory which is a purely algebraic model of the notion of a well behaved topological space. Historically, this model arose from earlier work in combinatorial topology and… …
82Dedekind-infinite set — In mathematics, a set A is Dedekind infinite if some proper subset B of A is equinumerous to A. Explicitly, this means that there is a bijective function from A onto some proper subset B of A. A set is Dedekind finite if it is not Dedekind… …
83Galápagos Hawk — Taxobox name = Galápagos Hawk status = VU | status system = IUCN3.1 trend = stable regnum = Animalia phylum = Chordata classis = Aves ordo = Falconiformes familia = Accipitridae genus = Buteo species = B. galapagoensis binomial = Buteo… …
84List of mathematics articles (M) — NOTOC M M estimator M group M matrix M separation M set M. C. Escher s legacy M. Riesz extension theorem M/M/1 model Maass wave form Mac Lane s planarity criterion Macaulay brackets Macbeath surface MacCormack method Macdonald polynomial Machin… …
85Bijection, injection and surjection — In mathematics, injections, surjections and bijections are classes of functions distinguished by the manner in which arguments (input expressions from the domain) and images (output expressions from the codomain) are related or mapped to each… …
86Categories for the Working Mathematician — is a textbook in category theory written by American mathematician Saunders Mac Lane, who cofounded the subject together with Samuel Eilenberg. It was first published in 1971, and is based on his lectures on the subject given at the University of …
87Weil cohomology theory — In algebraic geometry, a subfield of mathematics, a Weil cohomology or Weil cohomology theory is a cohomology satisfying certain axioms concerning the interplay of algebraic cycles and cohomology groups. The name is in honour of André Weil. Weil… …
88Structure (mathematical logic) — In universal algebra and in model theory, a structure consists of a set along with a collection of finitary operations and relations which are defined on it. Universal algebra studies structures that generalize the algebraic structures such as… …
89Restriction of scalars — In abstract algebra, restriction of scalars is a procedure of creating a module over a ring R from a module over another ring S, given a homomorphism f : R o S between them. Intuitively speaking, the resulting module remembers less information… …
90Günther Enderlein — (born 7 July 1872 in Leipzig; died 11 August 1968 in Wentdorf near Hamburg) was a German zoologist, entomologist and later a manufacturer of pharmaceutical products near Hamburg. Enderlein got some international fame because of his research about …
