English Dictionary

surreal number

noun

(mathematics) Any element of a field equivalent to the real numbers augmented with infinite and infinitesimal numbers (respectively larger and smaller (in absolute value) than any positive real number).

The concept of surreal numbers was introduced by John Horton Conway.

意味（1）

(mathematics) Any element of a field equivalent to the real numbers augmented with infinite and infinitesimal numbers (respectively larger and smaller (in absolute value) than any positive real number).

Conway's construction of surreal numbers relies on the use of transfinite induction.