set 3

 Python 3.9.1 (tags/v3.9.1:1e5d33e, Dec  7 2020, 17:08:21) [MSC v.1927 64 bit (AMD64)] on win32

Type "help", "copyright", "credits" or "license()" for more information.

>>> A={1,2,3,4,5,6}

>>> B={1,2,3,4,5,6,7,8,9}

>>> A.issubset(B)

True

>>> A.issuperset(B)

False

>>> B.issuperset(A)

True

>>> B.issubset(A)

False

>>> A.clear()

>>> A

set()

>>> B

{1, 2, 3, 4, 5, 6, 7, 8, 9}

>>> B.clear()

>>> B

set()

>>> ##above was concept to clear all elements in a set

>>> ##subset is small superset is large**

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