# Programming Essentials Python - Overview of Collections - Validating sets

In this article, we will explore how to validate sets using Python as a programming language. We will cover operations such as checking if an element exists in a set, determining if one set is a subset or superset of another, and checking if two sets are disjoint.

Explanation for the video

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## Key Concepts Explanation

### Checking if an Element Exists

We can use the `in` operator to check if an element exists in a set.

``````s = {1, 2, 3, 4, 5}
1 in s
``````

### `issubset`

The `issubset` method checks if the first set is a subset of the second set.

``````s1 = {1, 2, 3}
s2 = {1, 2, 3, 4, 5}
s1.issubset(s2)
``````

### `issuperset`

The `issuperset` method checks if the first set is a superset of the second set.

``````s1 = {1, 2, 3}
s2 = {1, 2, 3, 4, 5}
s2.issuperset(s1)
``````

### `isdisjoint`

The `isdisjoint` function checks if two sets have common elements.

``````s1 = {1, 2, 3, 4}
s2 = {3, 4, 5, 6, 7}
s1.isdisjoint(s2)
s1 = {1, 2, 3, 4}
s2 = {5, 6, 7}
s1.isdisjoint(s2)
``````

Explore these tasks to practice and apply the concepts discussed:

1. Check if a specific element exists in a set.
2. Determine if one set is a subset of another.
3. Verify if one set is a superset of another.
4. Check if two sets are disjoint.

## Conclusion

In this article, we delved into the world of validating sets in Python. We discussed various operations and methods to validate sets, such as checking for elements, subsets, supersets, and disjoint sets. It is essential to practice these concepts to strengthen your understanding. Feel free to engage with the community for any further learning opportunities.

## Validating set

Watch the video tutorial here