| 单词 | 置换 |
| 释义 | 〔translocate〕To cause to change from one place or position to another; displace.移动：使从一地点或位置变换到另一个地点或位置；置换〔transformation〕Replacement of the variables in an algebraic expression by their values in terms of another set of variables.变换：以另一套变量置换为一个代数表达式中变量的值〔permutation〕The act of altering a given set of objects in a group.置换：改变某一组中一群排列好的物体的行为〔contrapositive〕A proposition derived by negating and permuting the terms of another, equivalent proposition; for example,All not-Y is not-X is the contrapositive of All X is Y. 质位变换命题：由否定和置换另一等价命题的项而得到的命题；例如，“所有的非Y是非X" 是 “所有的X是Y" 的质位变换命题 |
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