dashleftarrow ⇠
dashrightarrow ⇢
llcorner └
lozenge ◊
lrcorner ┘
rightsquigarrow ⇝
sqsubset ⊏
sqsupset ⊐
square □
trianglelefteq ⊴
trianglerighteq ⊵
ulcorner ┌
unlhd ⊴
unrhd ⊵
urcorner ┐
vartriangleleft ⊲
vartriangleright ⊳
