\rightarrow
has math symbol class 3, that is, it is a math relation.
How can I define a macro, let's call it \rightinf
, to get the same right arrow character, but as an ordinary math symbol (like \infty
, say) rather than as a math relation?
Reason for the question:
I want to use \rightinf
to designate intervals in an ordered set that are not bounded above, as in (0, \rightinf)
, instead of (0, \infty)
.