“FirstAxiomOfCountability”的概念、定义、习题解题方法及翻译-数学辞典

单词	FirstAxiomOfCountability
释义	first axiom of countability A topological space $(X,\\tau)$ satisfies the first axiom of countabilityif the neighborhood system of every point $x\\in X$ has a countable local base. A space that satisfies the first axiom of countability is said to be first-countable.
随便看	homomorphic image of group HomomorphismBetweenAlgebraicSystems homomorphism between algebraic systems HomomorphismBetweenPartialAlgebras homomorphism between partial algebras HomomorphismOfLanguages homomorphism of languages HomomorphismsFromFieldsAreEitherInjectiveOrTrivial homomorphisms from fields are either injective or trivial HomomorphismsOfSimpleGroups homomorphisms of simple groups Homothetic homothetic HomotopesAndIsotopesOfAlgebras homotopes and isotopes of algebras Homotopies and Equivalences HomotopyCategory homotopy category HomotopyDoubleGroupoidOfAHausdorffSpace homotopy double groupoid of a Hausdorff space HomotopyEquivalence homotopy equivalence HomotopyExtensionProperty homotopy extension property HomotopyGroups

数学辞典收录了18232条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。

first axiom of countability