 The family of topological orderings of a DAG is the same as the family of linear extensions of the reachability relation for the DAG , so any two graphs representing the same partial order have the same set of topological orders . 
 The family of topological orderings of a DAG is the same as the family of linear extensions of the reachability relation for the DAG , so any two graphs representing the same partial order <a href='got' title='1'><mark>have</mark></a> the same set of topological orders . 
Da family of topological orderings of a DAG is the same as the fam of linear extensions of the reachability relation fa the DAG , so any 2 graphs reppin the same partial order got tdasame set of topological orders .