Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}


# key in s�������# containment check
if 2 in Set1:
    print("value found")
else:
    print("value not found")

# ******************************************************************** #
# key not in set # non-containment check
if 2 not in Set1:
    print("value not found")
else:
    print("value found")
    
# ******************************************************************** #
# set1 == set2  # set1 is equivalent to set2
Set1 =  {1, 2, 3, 4, 5}
# Set2 =  {3, 4, 5, 6, 7}
Set2 =  {1, 2, 3, 4, 5}
if Set1 == Set2:
    print("set1 and set2 are equal")
else:
    print("set1 and set2 are not equal")

# ******************************************************************** #
# set1 != set2  # set1 is not equivalent to set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
if Set1 != Set2:
    print("set1 and set2 are not equal")
else:
    print("set1 and set2 are  equal")

# ******************************************************************** #
# # set1 <= set2  # set1 is subset of set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
# Set1 =  {4, 5}
Set1 =   {3, 4, 5, 6, 7}
if Set1 <= Set2:
    print("set1 is subset of set2")
else:
    print("set1 is not subset of set2")

# ******************************************************************** #
# # set1 < set2   # set1 is proper subset of set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
Set1 =  {3,4}
if Set1 < Set2:
    print("set1 is proper subset of set2")
else:
    print("set1 is not proper subset of set2")

# ******************************************************************** #
# # set1 >= set2  # set1 is superset of set2
Set1 =  {1, 2, 3, 4, 5}
# Set2 =  {3, 4, 5, 6, 7}
# Set2 =  {1, 2, 3, 4, 5}
Set2 =  {4, 5}
if Set1 >= Set2:
    print("set1 is  superset of set2")
else:
    print("set1 is not superset of set2")

# ******************************************************************** #
# set1 > set2   # set1 is proper superset of set2
Set1 =  {1, 2, 3, 4, 5}
# Set2 =  {3, 4, 5, 6, 7}
Set2 =  {4, 5}
if Set1 > Set2:
    print("set1 is proper superset of set2")
else:
    print("set1 is not proper superset of set2")

# ******************************************************************** #
# set1 | set2   # the union of set1 and set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
print(Set1 | Set2)    

# ******************************************************************** #
# set1 & set2   # the intersection of set1 and set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
print(Set1 & Set2)

# ******************************************************************** #
# set1 – set2        # the set of elements in set1 but not set2
Set1 =  {1, 2, 3, 4, 5}
Set2 =  {3, 4, 5, 6, 7}
print(Set2 - Set1)