Comment to Exam Question 4a_澳门皇冠体育,皇冠足球比分

egork
2021-06-16T08:43:38.574Z
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www.uio.no

Request:

"let an operator * be canceling". What do you mean by canceling?

Answer:

As written in the question, an operator * is canceling if for every x we have x * x = x.
Thus, the notion of `canceling' is defined in this sentence for the purpose of this exam, it is not standard by any means.