超ちょう現げん実じつ数すう

noun

surreal number

A mathematical concept introduced by John Conway; used in combinatorial game theory and analysis. This is a technical term.

• 超ちょう現げん実じつ数すうは、実じっ数すうだけでなく無む限げん小しょうや無む限げん大だいも含ふくむ体たい系けいです。

  Surreal numbers form a system that includes not only real numbers but also infinitesimals and infinities.