Ivan Shishkin, Birch Grove

Poset

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7/1/2026, 12:18:12 PM · Ancient Tree

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1A poset $(P,\leq)$, or partially ordered set, is a [[Set|set]] $P$ equipped with a [[Relation (set theory)|relation]] $\leq$ that is [[Reflexive relation|reflexive]], [[Antisymmetric relation|antisymmetric]], and [[Transitive relation|transitive]].
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3##### Examples

Revision 163

7/1/2026, 12:15:38 PM · Ancient Tree

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A poset $(P,\leq)$, or partially ordered set, is a [[Set|set]] $P$ equipped with a [[Relation (set theory)|relation]] $\leq$ that is [[Reflexive relation|reflexive]], [[Antisymmetric relation|antisymmetric]], and [[Transitive relation|transitive]]. 

##### Examples