For every man is[man is] a living creature cannot be converted into this, every living creature is a man: and therefore if this syllogism be restored to its direct form, the minor proposition will be some man is a living creature, and consequently the conclusion will be some man is a body, seeing the minor term man, which is the subject in the conclusion, is a particular name.
How the third indirect figure is made.
11. The third indirect or inverted figure, is made by the conversion of both the premises. For example, this direct syllogism,
Every man is a living creature,
Every living creature is not a stone,
Therefore, Every man is not a stone,
being inverted, will stand thus,
Every stone is not a living creature,
Whatsoever is not a living creature, is not a man,
Therefore, Every stone is not a man;