English Explanatory Dictionary

Hasse diagram

English dictionary entry

Meanings

noun
  1. 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<y and y<z then no arrow is drawn from x to z, but if there is no distinct z between x and y (such that x<z<y) then an arrow is draw from x to y.

Word forms

Hasse diagram Hasse diagrams

Etymology

Named after Helmut Hasse (1898–1979), though he was not the first to use them.

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