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nydus/A System of Logic, Ratiocinative and InductivePublic
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Table of Contents

Chapter IV. Of Propositions.

1

Analysis of the Human Mind, i., 126 et seq.

2

Logic, i., 85.

3

Instead of Universal and Particular as applied to propositions, Professor Bain proposes (Logic, i., 81) the terms Total and Partial; reserving the former pair of terms for their inductive meaning, “the contrast between a general proposition and the particulars or individuals that we derive it from.” This change in nomenclature would be attended with the further advantage, that Singular propositions, which in the Syllogism follow the same rules as Universal, would be included along with them in the same class, that of Total predications. It is not the Subject’s denoting many things or only one, that is of importance in reasoning, it is that the assertion is made of the whole or a part only of what the Subject denotes. The words Universal and Particular, however, are so familiar and so well understood in both the senses mentioned by Mr. Bain, that the double meaning does not produce any material inconvenience.

4

It may, however, be considered as equivalent to a universal proposition with a different predicate, viz.: “All wine is good qu wine,” or “is good in respect of the qualities which constitute it wine.”

5

Logic, i., 82.

Chapter V. Of The Import Of Propositions.

1

Dr. Whewell (Philosophy of Discovery, p. 242) questions this statement, and asks, “Are we to say that a mole can not dig the ground, except he has an idea of the ground, and of the snout and paws with which he digs it?” I do not know what passes in a mole’s mind, nor what amount of mental apprehension may or may not accompany his instinctive actions. But a human being does not use a spade by instinct; and he certainly could not use it unless he had knowledge of a spade, and of the earth which he uses it upon.

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