set_of_integers = set()

set_of_integers.add(1)

set_of_integers.add(1)

set_of_integers.add(2)

set_of_integers.add(3)

set_of_integers.add(4)

set_of_integers.add(5)

print("set of integers", set_of_integers)

set_of_integers2 = {1, 2, 2, 3, 4, 5, 6, 7, 8}

print("set of integers 2", set_of_integers2)

print("intersection", set_of_integers.intersection(set_of_integers2))

print("union", set_of_integers.union(set_of_integers2))

print("set of integers", set_of_integers2)

# set_of_integers2.remove(1) #same as discard but throws exception

set_of_integers2.discard(1)

print("set of integers after remove", set_of_integers2)

# intersection

intersection_numbers = set_of_integers & set_of_integers2

print("set_of_integers", set_of_integers)

print("set_of_integers2", set_of_integers2)

print("intersection", intersection_numbers)

all_numbers = set_of_integers | set_of_integers2

print("union", all_numbers)

difference_sets = set_of_integers2 - set_of_integers

print("difference_sets", difference_sets)

set1 = {1, 2, 3}

set2 = {1, 2, 3}

set3 = {1, 2}

set4 = {4, 5}

#compare sets

print(set1 == set2)

print(set2 == set3)

print(set2 >= set3)

print("set3.issubset(set1),", set3.issubset(set1))

print("set3.intersection(set1),", set3.intersection(set1))

print("set3.union(set1),", set3.union(set4))

print("set1.difference(set3),", set1.difference(set3))