This shows grade level based on the word's complexity.
set theory
Save This Word!
This shows grade level based on the word's complexity.
noun
the branch of mathematics that deals with relations between sets.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
Origin of set theory
First recorded in 1940–45
Words nearby set theory
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use set theory in a sentence
For those ready to venture into a little set theory, read on.
They are uncommitted to any set theory and are relatively free from local European feelings.
British Dictionary definitions for set theory
set theory
noun
maths the branch of mathematics concerned with the properties and interrelationships of sets
logic a theory constructed within first-order logic that yields the mathematical theory of classes, esp one that distinguishes sets from proper classes as a means of avoiding certain paradoxes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012