Symbols:Abstract Algebra/Ordering

Ordering

 * $\preceq, \preccurlyeq, \curlyeqprec$

Used to indicate an ordering relation on a general ordered set $\struct {S, \preceq}$, $\struct{T, \preccurlyeq}$ etc.

Their inverses are $\succeq$, $\succcurlyeq$ and $\curlyeqsucc$.

We also have:
 * $\prec$, which means: $\preceq$ or $\preccurlyeq$, etc. and $\ne$
 * $\succ$, which means: $\succeq$ or $\succcurlyeq$, etc. and $\ne$.

Their $\LaTeX$ codes are as follows:
 * $\preceq$:
 * $\preccurlyeq$:
 * $\curlyeqprec$:
 * $\prec$:
 * $\succeq$:
 * $\succcurlyeq$:
 * $\curlyeqsucc$:
 * $\succ$:

The symbols $\le, <, \ge, >$ and their variants can also be used in the context of a general ordering if desired.

However, it is usually better to reserve them for the conventional orderings between numbers.