We will be concerned primarily with bijective proofs, i.e., showing that two sets have the same number of elements by exhibiting a bijection (one-to-one correspondence) between them.
要关心的是对射的证明，也就是透过在两个集合间建立一个对射（一对一且映成的
数）来证明它的元素个数相等。
We will be concerned primarily with bijective proofs, i.e., showing that two sets have the same number of elements by exhibiting a bijection (one-to-one correspondence) between them.
要关心的是对射的证明，也就是透过在两个集合间建立一个对射（一对一且映成的数）来证明它的元素个数相等。
声明：以上例句、词性
类均由互联网资源自动生成，
经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向
指正。
