8 Aug 1814

Logic

Ch. Division

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Write up this in conjunction with title Methodization.

Ch.

Of Division

Physical and Psychical - by /under/ /to/ one or other of these two epithets may every possible mode of division be referred /comprised/: physical, where the subject matter to be divided - say the dividend - is a natural / physical/ body or aggregate; psychical, where it is a psychical or say an ideal aggregate: viz. any aggregate of objects individually assignable or unassignable, for the designation of which a common name or say appellation has been provided.

Of these modes, the former /the physical/ is the only original and proper mode. It is the archetype of the other. The ideal aggregate is feigned to be - is considered as being a body - a mass of matter; any number of lesser aggregates into which, they being contained in it it is considered as being capable of being resolved, are considered as so many parts into which it is considered as capable of being divided.

Of these two modes, the psychical is the only one that belongs to the present design: the only one employed in the exercise of the art of Logic. In an institute of that art the other /the physical/ would not have had any title to a place, had it not been for the light which it may serve to throw upon - the explanation which it may help /serve/ to give of the psychical which has been deduced from it.

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