noun
infinite set
A set with an unlimited number of elements, used in mathematics and logic.
自然数全体の集合は無限集合の一例です。
The set of all natural numbers is an example of an infinite set.
有限集合 is a finite set, contrasting with 無限集合 which has no limit on the number of elements.
Compound of 無限 (infinite) and 集合 (set), a direct translation of the mathematical term 'infinite set'.