“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	one-parameter subgroup OnepassAlgorithmToComputeSampleVariance one-pass algorithm to compute sample variance OnesidedContinuity one-sided continuity OnesidedContinuityBySeries one-sided continuity by series OnesidedDerivatives one-sided derivatives OnesidedLimit one-sided limit OnesidedNormalityOfSubsemigroup one-sided normality of subsemigroup OnetooneFunctionFromOntoFunction one-to-one function from onto function OnewayFunction one-way function OnInhomogeneousSecondorderLinearODEWithConstantCoefficients on inhomogeneous second-order linear ODE with constant coefficients OnLineEncyclopediaOfIntegerSequences On-Line Encyclopedia of Integer Sequences On the definition of equivalences On the Residue Theorem OnTheResidueTheorem1 OntoLinearTransformationDefinitionOf

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