I've just discovered that the answer I had given on EL&U was missing something. When I pressed the edit button, I saw that I had written a V and enclosed in < and > i.e. < v > (without spaces) but it just wouldn't show up. It's not showing up here either -> (press edit to see)
I had written
<v> but when I submitted the answer, the 'v' didn't show up in the answer. It was fine back then. Is there something wrong with the formatting? Am I formatting it incorrectly?