DENUMERABLE

adjective

16 Scrabble

21 WWF

D 2

E 1

N 1

U 1

M 3

E 1

R 1

A 1

B 3

L 1

E 1

Definition

Capable of being assigned a bijection to the natural numbers. Applied to sets which are not finite, but have a one-to-one mapping to the natural numbers.

"The empty set is not denumerable because it is finite; the rational numbers are, surprisingly, denumerable because every possible fraction can be assigned a natural number and vice versa."