Operation collection of python

  & Intersection | union - set difference ^ exclusive or set

# When the collection operation do not affect the original set, but returns a result of the operation 
# Create two sets 
S = {1,2,3,4,5 } 
S2 = {3,4,5,6, 7 } 

# & intersecting operation 
result S = S2 & # {. 3,. 4,. 5} 

# | union operation 
result S = | S2 # {1,2,3,4,5,6,7} 

# - set difference 
result S = - S2 # {. 1, 2} 

# ^ acquired set of exclusive oR elements only appear in one collection 
Result S ^ S2 = # {. 1, 2,. 6,. 7} 

# <= checks whether the set is a collection of another subset 
# If all of a set of elements are present in the set b, then a set is a subset of the set of b, b collection is a superset of the set of 
a = {l, 2,3 } 
b = {1,2 , 3,4,5 } 

the ResultA = <= B # True 
Result = {l, 2,3} <= {l, 2,3} # True 
Result = {1,2,3,4,5} <= {l, 2,3} # false 

# <checks whether the set is a subset of another set 
# element superset if b contains a subset of all the elements, a and b are not there, then b is a superset of the set, is a b proper subset 
Result = {l, 2,3} <{l, 2,3} # False 
Result = {l, 2,3} <{1,2,3,4,5} # true 

# > = check whether a set of other superset 
# > check whether the set is a superset of another real 
Print ( ' Result = ' , Result)