poset

A poset, short for partially ordered set, is a collection of elements where some pairs can be compared to see which is "less" or "more," but not necessarily all pairs. The key ideas are: - Reflexivity: every element compares to itself. - Antisymmetry: if one element is less than another and vice versa, they are equal. - Transitivity: if one element is less than a second, and that second is less than a third, then the first is less than the third. This structure helps organize data where some items relate hierarchically, while others are unrelated.