Claim:≤ and ≥ are related

From CS2800 wiki
[math]|A| \href{/cs2800/wiki/index.php/%E2%89%A4}{≤} |B| [/math] if and only if [math]|B| \href{/cs2800/wiki/index.php/%E2%89%A5}{≥} |A| [/math]