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1867 Nov. 24 I wish to investigate the nature of a simple [wraph] Such a concept first arises as predicated of some object (occasion of experience) S is M On the ground of some previous representation of the object. (Not immediate) The predication of the concept is virtually contained in the previous representation

To say that a simple concept is the immediate apprehension of a quality is [that] a mode of saying that its meaning is given in the repre sentation which gives rise to it [inasmuch] as it [is] as much [is] to say that that quality is contained in the representation.

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Oct 2

Of the Effect of a Change of Information

Suppose it is learned that Any S is P Not P is not S Some P is S Then S receives an addition to its comprehension ~~ not S to its extension~~ P an addition to its extension ~~Any S is not P~~ ~~not P receives an addition to its extension~~ ~~not S receives an addition to its extension~~ ~~Also S receives an indefinite addition to its extension~~

If are looking at an S find it to be P. Some S is P This adds to the extension of P - supposing we know __what__ S Any S is not P This adds to the comprehension of S - supposing we know something of not P

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