SubStar
(Built-in Mathematica Symbol) SubStar[expr] displays as expr_*.
ReadProtected is an attribute that prevents values associated with a symbol from being seen.
CircleMinus[x, y] displays as x\[CircleMinus]y.
PlusMinus[x] displays as \[PlusMinus]x.PlusMinus[x, y, ...] displays as x \[PlusMinus] y \[PlusMinus] ....
OwnValues[x] gives the rule corresponding to any ownvalue defined for the symbol x.
Protected is an attribute which prevents any values associated with a symbol from being modified.
Mathematica allows any front end command to be executed programmatically from within the kernel by sending an appropriate front end token. There are tokens for all standard ...
CirclePlus[x, y, ...] displays as x\[CirclePlus]y\[CirclePlus]....
SubMinus[expr] displays as expr_-.
SubPlus
(Built-in Mathematica Symbol) SubPlus[expr] displays as expr_+.