denumerable
a. 可数的
释义与例句
adj.
-
1.
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.
数学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.
词汇关系
同义词 3
近义相关 1
词源
The word was introduced around the beginning of the 20th century, from Latin denumerō (“to count out”) + -able.
来源:wiktionary