# Reductio ad Absurdum and Other Things
Reductio ad absurdum… is a subtler move than any in chess: the chess player might sacrifice a pawn, even a piece, for the sake of the game—but the mathematician sacrifices the game itself.
Reductio ad absurdum… is a subtler move than any in chess: the chess player might sacrifice a pawn, even a piece, for the sake of the game—but the mathematician sacrifices the game itself.