Return to Aristotle, Categories
1. When one thing is predicated of another as of a subject, as many things as are spoken about that which is being predicated, all also be spoken about the subject. thus, man is predicated of some individual man, and animal is predicated of man; and therefore animal shall also be predicated of that individual man. For that individual man is both man and animal.
2. Of things that belong to different Genera, which are also not arranged under one another, the Differences will also be different in Species; as of animal and science. For the Differences of animal are pedestrious, biped, winged, and aquatic; but no one of these is a Difference of science. For one science does not differ from another science in being biped.
3. Of things that belong to different Genera, which are arranged under one another, nothing hinders the Differences from being the same; for superior Genera are predicated of the Genera which are under them. Hence, as many Differences as there are of what is being predicated, so many shall there also be of the subject.
Return to Aristotle, Categories
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