### All Set Theory Resources

## Example Questions

### Example Question #1 : Cardinal Numbers

Given the set , calculate the cardinality.

**Possible Answers:**

**Correct answer:**

Explanation:

Given a set , the cardinality is the number of elements in . This is also written as .

Looking at this particular problem,

Therefore the number of elements in a is,

### Example Question #1 : Cardinal Numbers

Given the set , calculate the cardinality.

**Possible Answers:**

**Correct answer:**

Explanation:

Given a set , the cardinality is the number of elements in . This is also written as .

Looking at this particular problem,

First, rewrite the set to depict a more accurate description of the space.

Therefore, counting up the number of elements, results in the following cardinality,

### All Set Theory Resources

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