deferred class COUNTABLE [G] General cluster: base description: "Infinite containers whose items are in one-to-one correspondence with the integers." Ancestors INFINITE* [G] Queries changeable_comparison_criterion: BOOLEAN Full: BOOLEAN has (v: G): BOOLEAN Is_empty: BOOLEAN item (i: INTEGER_32): G linear_representation: LINEAR [G] object_comparison: BOOLEAN Commands compare_objects compare_references