1
vote
3answers
71 views

“Let A be a set, [let] B [be] a group”

Math proves often start with "let". For example: Let A be a set. This is easy. But what about introducing several things in that manner? Let A be a set, B be a group, and C be a number. ...
4
votes
5answers
4k views

Divide two into four and Divide two by four

Why does "divide two into four" equal two, and "divide two by four" equal one half? Correct if I am wrong, but this what I have learned recently.
4
votes
4answers
728 views

What’s the correct usage of “modulo”?

How would we rephrase the following sentence to be grammatical? : 10 modulo 3 equals 1. By "grammatical", I probably mean something along the lines of standard American English. Initially, I'd ...