Set Theory

This page lists of the various symbols in the Set Theory group.

Symbols related to Set Theory

Symbols in this group:


Aleph-Null represents the infinite cardinality of the set of natural numbers.

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Aleph-One represents the cardinality of countable ordinal number sets.

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Indicates the number of elements in a set.

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Cartesian Product

A x B is the set of all ordered pairs from A and B.

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The complement of a set A is the set that contains all elements that are not in set A.

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Complex Numbers

Represents the set that contains all complex numbers.

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Element of

Indicates set membership.

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Empty Set

Represents the set that has no items (i.e., the set that is empty).

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Indicates that two sets have the same members.

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Everything #2

Everything finite; the full set of definitive knowledge a system is capable of retrieving and ordering.

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The set of all integer numbers.

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The intersection of two sets is the set of objects that belong to both sets.

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Natural Numbers Including Zero

Represents the set of all natural numbers including zero.

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Natural Numbers Without 0

Represents the set that contains all the natural numbers except 0.

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Nomega is used for determining sets of numbers that include either a continuous and infinite set of positive numbers and zero OR a continuous and infinite set of negative numbers and zero.

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not element of

Indications that an element is not a member of a set.

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not subset

Indications that a set is not a subset of another set

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Not Superset

Indicates that a set is not a superset of another set.

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Ordered Pair

A set of two elements.

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Power Set

A power set refers to subsets of A.

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Proper Subset (also called a strict subset)

A proper subset is subset that has few elements than the set, i.e., the subset can not be the original set.

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Proper Superset (also called strict superset)

A proper superset is a superset that has more elements than a set.

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Rational Numbers

Represents the set of all rational numbers.

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Real Numbers

Represents the set that contains all real numbers.

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Relative Complement

Refers to objects that belong to one set but are not in the other set.

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A set is a collection of elements represented as a comma separated list of elements.

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Set Brackets

A comma separated list of values that represent the members of a set.

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A subset of a group is a set that contains some or all of the elements of a set.

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The superset has all the items of a set and possibly additional items.

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Symmetric Difference

Items that belong to two sets but not the intersection of the two sets.

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Taurus is the 2nd astrological sign in the zodiac, originating from the constellation of the Taurine.

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The union of two sets is the set of all objects in both sets.

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Universal set

The set that contains all possible values.

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