Introduction - Set Theory

Front

What is a set in set theory?

Back

A collection of distinct objects, considered as an object in its own right.

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What does the symbol ∪ represent in set theory?

Back

Union - the set of elements that are in either set A, set B, or both.

Front

What does the symbol ∩ represent in set theory?

Back

Intersection - the set of elements that are common to both set A and set B.

Front

What is a Venn diagram?

Back

A diagram that shows all possible logical relations between a finite collection of different sets.

Front

What does 'n(A)' represent?

Back

The number of elements in set A.

Front

What is the complement of a set?

Back

The set of all elements in the universal set that are not in the given set.

Front

What does it mean for two sets to be disjoint?

Back

Two sets are disjoint if they have no elements in common.

Front

How do you find the union of two sets?

Back

Combine all unique elements from both sets.

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How do you find the intersection of two sets?

Back

Identify the elements that are present in both sets.

Front

What is a subset?

Back

A set A is a subset of set B if all elements of A are also in B.