$a$ and $b$ belongs to partially ordered set.
$a < b$: means $a$ is less then $b$
What is the notation / sign to say: $a$ and $b$ incomparable (it is not the case that $a<b$ or $a>b$ or $a=b$)?
2026-04-24 21:23:21.1777065801
What is notation / sign for incomparable elements?
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