Super Short Summary

Proof follows Catherine, a young woman grappling with her father Robert's recent death and her own future. Robert was a brilliant mathematician who succumbed to mental illness, and Catherine fears she may inherit his instability. As she forms a connection with Hal, her father's former student, tensions arise over a groundbreaking mathematical proof she claims to have written. The play delves into themes of genius, heredity, familial duty, and the complexities of trust and recognition.