تعريف hasse diagram في الإنجليزية الإنجليزية القاموس.
A diagram which represents a finite poset, in which nodes are elements of the poset and arrows represent the order relation between elements. Transitivity of the order relation is tacit, in other words, if x \le y and y \le z then no arrow is drawn from x to z, but if there is no distinct z between x and y (such that x \le z \le y ) then an arrow is draw from x to y