Proof is a definitive work of contemporary American theatre. It is a darker academic relationship drama regarding the protagonist's highly unlikely discovery of a pivotal mathematic proof. It combines hyper-realistic writing with deeply researched insight into the work and lives of university mathematicians as well as attention to the realities of living with a mental health concern. It was adapted into a movie starring Gwyneth Paltrow, Jake Gylenhall, and Sir Anthony Hopkins in 2005.