A lycée in Lyon, 1944. A young Polish refugee is hiding in the school. His identity papers are forged, and deportation to the death camps may await him if he is caught. His attention, however, is not on the dangers outside but on a mathematics lesson. When he first started taking the classes, 'he sat uncomprehending before the meaningless words and numbers on the blackboard.' Today, though, a picture has coalesced in his mind. It renders redundant the teacher's protracted algebraic manipulations. He raises his hand: 'Sir, you don't need to make any calculations. The answer is obvious.'

LRB 4 August 2005 | PDF Download