Plato's Theory of Forms

Popper: Plato didn't agree with democritus, but he had some sympathy with him. Poppe writes that plato realized that the purely arithmetical view of reality, that all is number, could not possibly be true. And this is why plato built upon that and took elements of Democritus's own theory to develop his theory of forms. Ultimately, this led to a new mathematical formulation of reality," says Popper.