Symbols related to Set Theory
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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.
Indicates the number of elements in a set.
A x B is the set of all ordered pairs from A and B.
The complement of a set A is the set that contains all elements that are not in set A.
Represents the set that contains all complex numbers.
Indicates set membership.
Represents the set that has no items (i.e., the set that is empty).
Indicates that two sets have the same members.
The set of all integer numbers.
The intersection of two sets is the set of objects that belong to both sets.
Represents the set of all natural numbers including zero.
Represents the set that contains all the natural numbers except 0.
Indications that an element is not a member of a set.
Indications that a set is not a subset of another set
Indicates that a set is not a superset of another set.
A set of two elements.
A power set refers to subsets of A.
A proper subset is subset that has few elements than the set, i.e., the subset can not be the original set.
A proper superset is a superset that has more elements than a set.
Represents the set of all rational numbers.
Represents the set that contains all real numbers.
Refers to objects that belong to one set but are not in the other set.
A set is a collection of elements represented as a comma separated list of elements.
A comma separated list of values that represent the members of a set.
A subset of a group is a set that contains some or all of the elements of a set.
The superset has all the items of a set and possibly additional items.
Items that belong to two sets but not the intersection of the two sets.
The union of two sets is the set of all objects in both sets.
The set that contains all possible values.
"Set Theory Symbols." Symbols.com. STANDS4 LLC, 2020. Web. 1 Apr. 2020. <https://www.symbols.com/group/93/Set+Theory>.