“Countable”的概念、定义、习题解题方法及翻译-数学辞典

单词	Countable
释义	countable A set $S$ is countable if there exists a bijection between $S$ and some subset of $\\mathbb{N}$ . All finite sets are countable.
随便看	NaturalNumbersAreWellordered natural numbers are well-ordered NaturalNumbersIdentifiedWithBinaryStrings natural numbers identified with binary strings NaturalProjection natural projection NaturalSymmetryOfTheLorenzEquation natural symmetry of the Lorenz equation NaturalTransformationsOfOrganismicStructures natural transformations of organismic structures Nchain n-chain nchooseRIsAnInteger NdimensionalIsoperimetricInequality n-dimensional isoperimetric inequality NdivisibleGroup n-divisible group NearOperators near operators Nearring near-ring NearsquarePrime near-square prime NecessaryAndSufficient necessary and sufficient

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。

countable