Compare two Set  and return list that does'nt exist in Set2
102236
Comparing two field name in two lists
143973
Get the differences between 2 lists
137337
Removing duplicates from a list collection
130157
How to calculate the intersection of two sets?
102515
Counting functions between two sets
113083
How to prove a set equality?
64831
Merge multiple sets elements in a single set
146601
Comparing two objects .
35506
remove duplicate from list and create non-duplicate id set
66242
Use LINQ to get items in one List, that are not in another List
88394
Check if one list contains element from the other
2935
Completness and Set of Result of One Set ?!?
80156
Formatting the union of sets
35430
selecting where two columns are in a set
95734
Check if something is (not) in a list in Python
115314
How do you efficiently return all of a List but one element?
30660
Empty set does not belong to empty set