proper subset
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proper subset — n. a subset that does not include all the members of the set to which it belongs * * * … Universalium
proper subset — n. a subset that does not include all the members of the set to which it belongs … English World dictionary
proper subset — noun Of a set, a set that is a subset of the set but not equal to it. 2, 4, 5 is a proper subset of 1, 2, 3, 4, 5, but 1, 2, 3, 4, 5 is not … Wiktionary
Proper — may refer to:* Proper (liturgy), the part of a Christian liturgy that is specific to the date within the Liturgical Year * Proper frame, such system of reference in which object is stationary (non moving), sometimes also called a co moving frame… … Wikipedia
Subset — In mathematics, especially in set theory, a set A is a subset of a set B if A is contained inside B . Notice that A and B may coincide. The relationship of one set being a subset of another is called inclusion.DefinitionsIf A and B are sets and… … Wikipedia
subset — noun /ˈsʌbˌsɛt/ a) With respect to another set, a set such that each of its elements is also an element of the other set. The set of integers is a subset of the set of reals. b) A group of things or people, all of which are in a specified larger… … Wiktionary
Proper map — In mathematics, a continuous function between topological spaces is called proper if inverse images of compact subsets are compact. In algebraic geometry, the analogous concept is called a proper morphism. Definition A function f : X rarr; Y… … Wikipedia
Proper morphism — In algebraic geometry, a proper morphism between schemes is an analogue of a proper map between topological spaces. Contents 1 Definition 2 Examples 3 Properties and characterizations of proper morphisms … Wikipedia
Proper forcing axiom — In the mathematical field of set theory, the proper forcing axiom ( PFA ) is a significant strengthening of Martin s axiom, where forcings with the countable chain condition (ccc) are replaced by proper forcings. Statement A forcing or partially… … Wikipedia
proper — properly, adv. properness, n. /prop euhr/, adj. 1. adapted or appropriate to the purpose or circumstances; fit; suitable: the proper time to plant strawberries. 2. conforming to established standards of behavior or manners; correct or decorous: a … Universalium
proper — I. adjective Etymology: Middle English propre proper, own, from Anglo French, from Latin proprius own Date: 14th century 1. a. referring to one individual only b. belonging to one ; own c. appointed for the liturgy of a particular day d.… … New Collegiate Dictionary
