A poset can be represented by a directed graph where there is 0 or 1 (but not more than one) arrows between the nodes.
For example if we have a relation between two elements 'p' and 'q':
p >= q  Then we write an arrow  p →q 
A poset can be represented by a directed graph where there is 0 or 1 (but not more than one) arrows between the nodes.
For example if we have a relation between two elements 'p' and 'q':
p >= q  Then we write an arrow  p →q 
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