What is Mathematics?

What is Mathematics? An Elementary Approach to Ideas and Methods

Ian Stewart, Richard Courant, Herbert Robbins, Professor of Mathematics Herbert Robbins, Herbert (Professor of Mathematics Robbins, Professor of Mathematics Rutgers University), Courant Institute of Mathematical Sciences Richard Courant, Herbert Robbins Richard Courant (Ian Stewart) — 1996

A discussion of fundamental mathematical principles from algebra to elementary calculus designed to promote constructive mathematical reasoning.