2

Mathematicians often use

$a, b\in M$

to announce that a and b are elements of the set M.

Sometimes, one wants to replace the "\in"-symbol by the English word "in" – for example when one tries to reduce the usage of symbols in order to improve readability.

Question: Would you use

Let $a, b$ in $M$

or

Let $a$, $b$ in $M$

?

10
  • Let $a$, $b$ in $M$. Commented Jul 27, 2016 at 13:03
  • In either case, use $M$.
    – Karlo
    Commented Jul 27, 2016 at 13:03
  • Karlo: Yes, I meant that. Just edited the question. Thanks for the comment.
    – ewuwuw
    Commented Jul 27, 2016 at 13:04
  • I'd use $a,b$ in $M$. I think this is off topic though.
    – Hugh
    Commented Jul 27, 2016 at 13:05
  • 3
    Related: $a,\ b$, and $c$ vs. $a$, $b$, and $c$
    – cgnieder
    Commented Jul 27, 2016 at 13:55

0

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