Symbols:Inequalities/Less Than or Equal To

Usual Ordering

$\le$ or $\leqslant$

Less than or equal to.

A binary relation expressing the usual ordering on one of the sets of numbers: $\N$, $\Z$, $\Q$, $\R$:

$a \le b \iff b - a$ is positive or zero.

The $\LaTeX$ code for \(\le\) is \le  or \leq.

The $\LaTeX$ code for \(\leqslant\) is \leqslant .

Also see

• Symbols:Less Than
• Symbols:Greater Than

• Symbols:Greater Than or Equal To

Sources

• 1972: Murray R. Spiegel and R.W. Boxer: Theory and Problems of Statistics (SI ed.) ... (previous) ... (next): Chapter $1$: Inequalities
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Appendix: Table $7$: Common signs and symbols: inequality
• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): Appendix $14$: Symbols