set theory
1 of 1noun/ˈsɛt ˈθiəri/
1
a branch of mathematics that deals with the study of sets, which are collections of distinct objects, and their properties, relationships, and operations
C2Learn more on Wikipedia- Set theory helps define relationships between different groups of numbers.
- In set theory, a set is a collection of distinct elements.
- Mathematicians use set theory to study the properties and operations of sets.
- The empty set, denoted by {}, is a fundamental concept in set theory.
- Set theory forms the basis for defining functions and relations.