On posers and puzzles quite often some kind of mathematical problem arises that can't be propperly explained, described using a mix of natural language and some ingenious use of the existing symbols. So it would be good for us to have some math tags available. Nothing fancy of course just the more down to earth symbols that are missing.
For example the use of subscripts and superscripts would be very nice, some symbols of set theory, the more usual one again.
Of course if this is to troublesome and only appeal to a few of us we can always resort to our previous ingenious methods.
Ps: any more ideas on what symbols to have would be fine and please don't, or try to, be funny while at it.