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ONT Re: Just In Time Logic




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JITL.  Note 12

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| Chapter ___.  The List of Categories
|
| In the doctrines which have thus far been developed, are implicitly
| involved certain conceptions of such universal applicability and such
| importance in logic, that I propose to consider them especially in this
| chapter under the name of 'Categories'.
|
| In the ideal final opinion which would perfectly represent the reality of things,
| all possible doubt would be resolved.  It follows that the reality is something
| entirely definite.  'Ens est unum.'  An object may be conceived to have this
| character without being real, that is without being in accord with the
| opinion to which observations are fated to tend, and I shall call this
| the 'being' of things.  A griffin 'is' a fabulous animal.  That is,
| a griffin is supposed to be a definite object.  You may ask as many
| questions as you please about a griffin and supply answers according
| to some rule and if all the questions which could be invented were
| thus answered, the animal would possess as perfect a being as if
| it were real, and yet be a mere creature of the imagination.
|
| In every doubt there is one thing fixed and one thing vague;
| the thing which we doubt something about is fixed, what we
| doubt about it is vague.  These two things must equally be
| distinguished in the belief in which the doubt is resolved.
| Consequently, every being has elements which are distinguished
| from it but which belong to it, in short it has 'qualities'.
|
| C.S. Peirce, CE 3, p. 61.
|
| Charles S. Peirce, "The List of Categories", MS 207, Winter 1872-73, p. 61 in:
|'Writings of Charles S. Peirce:  A Chronological Edition, Volume 3, 1872-1878',
| Peirce Edition Project, Indiana University Press, Bloomington, IN, 1986.

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