可か付ふ番ばん集しゅう合ごう

noun

denumerable set; countable set

Technical term in set theory; a set whose elements can be put into a one-to-one correspondence with the natural numbers. See also 可算集合.

See also: 可算集合

• 有ゆう理り数すう全ぜん体たいの集しゅう合ごうは可か付ふ番ばん集しゅう合ごうである。

  The set of all rational numbers is a countable set.