Does anybody know what symbol to put above an inequality symbol <
to indicate that the triangle inequality has been applied?
I would like a symbol like this (which is not in The Comprehensive Latex Symbol List)
And I tried the following
\mathrel{\triangle\!\!\!\!/}
but the two lines are not parallel:
Does anybody know how to somehow rotate the line to the correct angle? Any help is appreciated!
\mathrel{\ooalign{\hidewidth$\triangle$\hidewidth\cr\rotatebox[origin=c]{-9}{$/$}\cr}}
.