For I give the name of 'difference in the genus' an otherness which makes the genus itself other. This, then, will be a contrariety (as can be shown also by induction).
Beraz, desberdintasun hau nahitaez izango da generoaren "bestetasuna", "generoaren desberdintasuna" izendatzen baitut generoa bera "beste bat" bilakatzen duen bestetasuna.