What is mathematics?

About “What is mathematics?”

What Is Mathematics? is a classic book by Richard Courant and Herbert Robbins, published by Oxford University Press. The authors wrote it with the belief that "the traditional place of mathematics in education is in grave danger." The book serves as an introduction to mathematics, aiming to provide "vantage points from which the substance and driving forces of modern mathematics can be surveyed" for students and the general public. It seeks to offer a broader understanding of mathematics beyond traditional classroom instruction. (Summary adapted from Wikipedia, CC BY-SA 4.0.)