lemma
英 美
The lemma for good is good.
good的词元是good。
Under the hypotheses of lemma 15 ', technical condition B is true.
在引理15 \的假设下,技术条件B是真命题。
Then that reader can skip the proof of lemma 15 'completely, and not have to deal with B at all.
这样读者就可以完整地跳过引理15 \,完全不必关心B了。