Short Art

the human mind hunts for necessary conclusions and finds them. Again, let the letters be circulated with B of the same larger circle and with D of the middle circle, and so on for others of the middle circle and the inferior circle, changing those of B of the larger circle, while it remains immovable, until one arrives with B of the larger circle to I of the middle circle and to K of the inferior circle, and thus there will be two hundred and fifty-two chambers. This figure is more general than the third, because in each chamber of this third figure there are three letters, but in each chamber of the third figure there are only two letters; therefore, the intellect is more general through the fourth figure than through the third. Concerning the condition of the fourth figure, it is that the intellect should apply those letters to the proposition which seem more applicable to the proposition; having made a chamber of three letters, it should receive the significations of the letters by respecting the agreement existing between the subject and the predicate and avoiding inconsistencies, and with this condition, the intellect makes science through the fourth figure and has many reasons for the same conclusion. We have spoken of the four figures which one must know by heart, without which the artist cannot use this art nor practice it.

¶ Concerning the definitions, which

is the third part.