Intuitionism is a philosophical approach to mathematics that emphasizes the role of human intuition in understanding mathematical truths. It argues that mathematical objects are not discovered but created by the mind, and that mathematical statements are only true if they can be constructively proven. This perspective contrasts with classical mathematics, which often relies on abstract concepts and non-constructive proofs. Developed in the early 20th century by mathematicians like L.E.J. Brouwer, intuitionism challenges the traditional views of mathematics. It suggests that mathematical knowledge is inherently subjective and that the validity of mathematical statements depends on our ability to construct them explicitly.