x_{1} (set, group, structure, category, class, etc.) has cardinality less than or equal to aleph-null; x_{1} is mathematically countable (including the option of being finite).

Purposefully designed as a zi'evla. x_{1} is finite or countably infinite; there exists a bijection between (the set underlying) x_{1} and a (not necessarily proper) subset of the set of all of the natural numbers. The empty set is finite. For "uncountable"/"uncountably infinite", use "to'e (zei) kancuka'e". See also: cimni / tolcimni.

- to'e zei kancuka'e
- x
_{1}(set, group, structure, category, class, etc.) has cardinality strictly more than aleph-null; x_{1}is mathematically uncountable.