Equinumerous sets are said to have the same cardinality, and the cardinal number of a set is the equivalence class of all sets equinumerous to it.
The cardinal number of a set is the equivalence class of all sets equinumerous to it. Equinumerous sets are said to have the same cardinality,.
Equinumerous sets are said to have the same cardinality,. The cardinal number of a set is the equivalence class of all sets equinumerous to it.
Equinumerous sets are said to have the same cardinality,. The cardinal number of a set is the equivalence class of all sets equinumerous to it.