Defining Numbers & Functions Using SET THEORY // Foundations of Mathematics

We are all familiar with numbers and functions....but are these the most basic, most foundational concept in mathematics? Mathematicians use set theory as the basic building blocks of so much of math. In this video we are going to see how we can think of numbers and functions in terms of sets.

0:00 The Definition Problem
1:44 Set Theory
3:50 Numbers in Set Theory
6:48 Functions in Set Theory

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