A theory of artArt refers to a diverse range of human intellectual and expressive activities and the outcomes of those activities. Within this context art is further defined... is intended to contrast with a definition of art. Traditionally, definitions are composed of necessary and sufficient conditions and a single counterexample overthrows such a definition. Theorising about art, on the other hand, is analogousIn a colour wheel, colours which are next to each other, such as red and orange; it is the opposite of complementary. to a theory of a natural phenomenon like gravity