Subset

/ˈsʌbset/
Definition 1 of 3
Visual representation of "subset"
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Not Always Numbers

A subset can include any related items, not just numbers.

Illustration for Not Always Numbers
Painters such as Monet and Degas are a subset of Impressionist artists.
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Proper vs Improper

A proper subset doesn't contain all elements of the original set.

Illustration for Proper vs Improper
The set {1, 2} is a proper subset of {1, 2, 3}.
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Inclusion Doesn't Equal Equality

A set with all items from another set is a subset but not vice versa.

Illustration for Inclusion Doesn't Equal Equality
The set of all fruits is a subset of all foods, but they are not the same.
Visual representation of the word "Subset"

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