subset
/ˈsəbˌsɛt/
a set whose elements are all contained in another set
subset in a sentence
“The even numbers are a subset of the integers.”
Origin of subset
sub- under + set
Related Words
union
the set containing all elements from two or more sets
intersection
the set of elements common to two or more sets
cardinality
the number of elements in a set
bijection
a one-to-one correspondence between two sets
predicate
a statement containing variables that becomes true or false when values are assigned
quantifier
a symbol specifying the quantity of specimens in a domain