meet-irreducible element
21Structure (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… …
22Young's lattice — In mathematics, Young s lattice is a partially ordered set and a lattice that is formed by all integer partitions. It is named after Alfred Young, who in a series of papers On quantitative substitutional analysis developed representation theory… …
23evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… …
24metaphysics — /met euh fiz iks/, n. (used with a sing. v.) 1. the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology. 2. philosophy, esp. in its more abstruse branches. 3. the… …
25Invariant subspace — In mathematics, an invariant subspace of a linear mapping : T : V rarr; V from some vector space V to itself is a subspace W of V such that T ( W ) is contained in W . An invariant subspace of T is also said to be T invariant.If W is T invariant …
26history, philosophy of — Branch of philosophy concerned with questions about the meaningfulness of history and the nature of historical explanation. Philosophy of history in the traditional sense is conceived to be a first order inquiry, its subject matter being the… …
27Glossary of philosophical isms — This is a list of topics relating to philosophy that end in ism . compactTOC NOTOC A * Absolutism – the position that in a particular domain of thought, all statements in that domain are either absolutely true or absolutely false: none is true… …
28native American — native American, adj. a person born in the United States. [1835 45, Amer.] * * * ▪ indigenous peoples of Canada and United States Introduction also called American Indian, Amerindian, Amerind, Indian, Aboriginal American, or First Nation… …
29Native American — Indian (def. 1). Usage. See Indian, Eskimo. * * * ▪ indigenous peoples of Canada and United States Introduction also called American Indian, Amerindian, Amerind, Indian, Aboriginal A …
30economic systems — Introduction the way in which humankind has arranged for its material provisioning. One would think that there would be a great variety of such systems, corresponding to the many cultural arrangements that have characterized human society.… …
