Have you ever heard of David Auburn, one of the most productive American playwrights of our days? If not, it is high time you learn about his oeuvre. The audience of The English Theatre will greatly enjoy his drama “Proof” that won him not only the coveted Pulitzer Prize but also the Tony Award. This gripping play about a mathematical genius – or even two geniuses (one of them female) – has proved an overwhelming success on the international theatre stages. A much acclaimed movie stars Gwyneth Paltrow and Anthony Hopkins in the leading parts.
Although Robert (Richard Ings) is dead he is haunting his daughter in her day dreams. While Catherine (Georgina Casbarra) is sitting on the porch of her home in Chicago on a sunny afternoon, Robert appears as a ghost in front of her. Why is she, a brilliant mathematician like himself, neglecting her scientific work? Has she become lazy bones? By no means. Since Catherine has been caring for her demented father for years, she has completely dropped out or her own mathematical studies. Now she worries about inheriting her father’s mental illness along with some of his talent.
Sisterly concern
When Catherine’s sister Claire (Katherine Bristow) learns about her father’s death, she leaves New York immediately to assist Catherine in organizing the funeral. Claire being completely matter of fact, thus the exact contrast of Catherine, does not lose time with grieving over the deceased. Why does Catherine not fly with her to New York and enjoy Big Apple with all its diverse pleasures? A complete change of scenery would do the younger sister a world of good. To Claire’s surprise Catherine denies her offer and insists on staying in Chicago.
A friend turns up
During Robert’s funeral service Hal (Peter Dewhurst) turns up. He was one of Robert’s most gifted students who now feels entitled to go through his late master’s papers. Catherine falls in love with the young man and even spends the night with him. Next morning Catherine and Hal are enjoying a good breakfast while Claire is fighting a terrible hangover nausea. Wow – who on earth could ever have imagined such a faux pas committed by so fine and stylish a lady like Claire.
Heureka – a sensational find!
Meanwhile Hal is poring over Robert’s notes searching for some final note of brilliance left by his late professor. Finally he comes across a notebook that reveals a sensational result. Did Robert really crack an important mathematical proof! But, surprise, surprise, Catherine claims that this notebook contains her and not Robert’s work. Is she really the the one who finally “cracked the nut?”
Claire and Hal can’t believe that Catherine is the genius and not Robert as everybody else would have suggested. Claire even reveals her doubt about Catherine’s mental sanity. Catherine falls into depression and cannot believe what her own sister is doing to her. However, Hal hands the notebook over to experts in his math department who will determine its authenticity. The result of their research shakes the academic world. It becomes clear that Catherine and not Robert has achieved the “unthinkable.”
Catherine is happy and thankful for Hal’s assistance and loyalty in her “case.” She plucks up courage again und decides to continue her studies. She will prove to the world that she can live her own independent life without being patronized by others.
Conclusion: Persistence pays off.
According to David Auburn his play is not really about mathematics. Critics claim that “Proof” is ostensibly about math, but it is merely a background of the exploration of the calculus of familial trust, love, grief and loyalty.” Others claim an underlying sexism. A female mathematical genius? Unthinkable in a world full of machos who think that only their sex is up to academic peak performances. The author, however, proves that genius is by no means a question of gender. Feminists will build him a monument for his courage to refute centuries-old prejudices.
A great evening at the ETH brimming with highly emotional and funny moments, performed by four outstanding “thespians” under the direction of Clifford Dean.
Last but not least a homage for David Auburn by The New York Magazine: “When we think of great playwrights we think of Arthur Miller, Eugene O’Neill and Lillian Hellman. Welcome David Auburn to the club!”
Last performance of “Proof” on April 11, 2026, Tickets under phone number 040-227 70 89 or online under www.englishtheatre.de
Next premiere: “All New People” by Zach Braff on April 27, 2026
Photos: Stefan Kock