yadi hi gavādīnāṃ vastubhūtaṃ sārūpyaṃ prasiddhaṃ bhavet tadāśvādyapohāśrayatvameṣām aviśeṣeṇa siddhyennānyathā
For if a real similarity among cows and such were admitted, then their being the substrate of the exclusion of horses and such would be established without distinction, [but] not otherwise.