Question

Hasse diagrams.

Answer 1

@ganeshie8

Answer 2

wow... good luck!
sorry for the post, I'm just interested to see one, I've googled what a hasse diagram is... looks complex

Answer 3

{1,2,3,5,10,15,20}
paris (1,1),(1,2),(1,3),(1,4),(1,10),(1,15),(1,20)
(2,2),(2,10),(2,20)
(3,3),(3,15)
(5,5),(5,10),(5,15),(5,20)
(10,10),(10,20)
(15,15)
(20,20)