Proof

Proof is the winner of the 2001 Pulitzer Prize for Drama.

One of the most acclaimed plays of the 1999-2000 season, Proof is a work that explores the unknowability of love as much as it does the mysteries of science.

It focuses on Catherine, a young woman who has spent years caring for her father, Robert, a brilliant mathematician in his youth who was later unable to function without her help. His death has brought into her midst both her sister, Claire,…