In a Hasse diagram of a poset (π΄, β€), a pair of distinct elements π and π of π΄ are connected by a line
segment if, and only if,
A) either π β€ π and there is no π β π΄ such that π β€ π β€ π, or else π β€ π and there is no π β π΄ such
that π β€ π β€ π.
B) either π β€ π or else π β€ π.
C) π β° π and π β° π.
D) π β€ π.
Much appreciate!
Comments
Leave a comment