充分必要条件 meaning in English

necessary and sufficient conditions

A necessary and sufficient condition on diffeomorphisms
关于微分同胚的一个充分必要条件
Sufficient and necessary conditions of multiplicative convex functions
积性凸函数的充分必要条件
Theorem 1 and are equivalent infinitesimals if and only if
定理1与是等阶无穷小的充分必要条件为
Sufficient and necessary conditions for a finite group to be solvable
有限群可解的若干充分必要条件
On the definition of life and the prerequisite of the origins of life
生命的定义和生命起源的充分必要条件

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