The issubset() method can be used to determine whether set1 is a subset of set2.

Question

The issubset() method can be used to determine whether set1 is a subset of set2.

BlackTom AI · Accepted Answer

Consider the statement about the issubset() method and how it relates to subset tests.
Option 1 (True): This is correct. In Python, you can call set1.issubset(set2) to check whether every element of set1 is contained in set2, which is exactly the definition of set1 being a subset of set2. The method also aligns with the mathematical idea of subset and is equivalent to set1 <= set2. Moreover, it returns True even if set1 and set2 are equal, and returns True when set1 is empty, since the empty set is a subset of any set.
Option 2 (False): This would be incorrect because the issubset() method is designed for subset testing, not for other kinds of relationships or operations. If you think it only applies to special cases or exclusive to certain types of sets, you’d be overlooking the general subset semantics and the fact that the method is a standard, reliable way to verify that all elements of the first set appear in the second.
Further clarifications: While you sometimes see the subset relationship expressed with the <= operator (set1 <= set2), issubset() provides a readable method form and accepts set1 as the object and set2 as the reference. The underlying concept remains: every element of set1 must be present in set2 for the test to yield True, which is precisely what defines a subset.
In summary, the statement accurately describes the purpose and usage of issubset() for subset verification, and the alternative false interpretation misrepresents the method’s role and behavior.

2261 CS 0012 SEC1010 Final Quiz

The issubset() method can be used to determine whether set1 is a subset of set2.

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