There is a strange interaction between Markdown and MathJax when the character
< appears in a math snippet which is followed by some (not all) non-whitespace character. I would have expected
< not to have any special meaning between
$ signs and the character after the closing
$ not to matter, but this is not always the case.
I say “then $a<b$”. More $math$. I say “then $a<b$”. *Emphasis* $math$.
I say “then $a
I say “then $aEmphasis $math$.
I observed this in Chrome 17.0.963.79. Initially while composing this answer, and the screeenshot above is from https://cs.stackexchange.com/questions/ask (my screenshot-grabbing extension sometimes puts the wrong URL).