“transposition”的概念、定义、翻译、参考文献-科学参考

单词	transposition
释义	transposition Mathematics A permutation of a set which swaps two elements but fixes all others or, equivalently, a cycle of length 2. Any permutation of a finite set can be written as a product of a number of transpositions; this expression is far from unique, though the parity of the number is well defined. Philosophy Term sometimes used in logic for the transformation usually known as contraposition, whereby from (p → q) we can derive (¬q → ¬p).
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科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。