'Proof' Broadway review — Ayo Edebiri aces her Broadway debut in a revival that really adds up
8 / 10
It’s altogether a pleasure to watch the play unfold, as it makes room for hope. Mathematicians seek to eliminate ambiguity, but life’s not like that. But there are zero debates about the cast stepping up. As Claire, Young, a four-time Tony nominee who’s won for Purlie Victorious and Purpose, hits all her notes as the acerbic and bossy but loving sister. Ha brings heaps of dorky appeal as Hal, who’s drawn to Catherine — and to a shot at advancing his career. Cheadle fills the addled dad with heart and raw vulnerability.

