[Logic by Carveth Read]@TWC D-Link book
Logic

CHAPTER V
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Whoever knows the meaning of 'master,' 'horse,' 'red,' 'British,' learns nothing from these propositions.

Hence they are called Verbal propositions, as only expounding the sense of words, or as if they were propositions only by satisfying the forms of language, not by fulfilling the function of propositions in conveying a knowledge of facts.

They are also called 'Analytic' and 'Explicative,' when they separate and disengage the elements of the connotation of the subject.
Doubtless, such propositions may be useful to one who does not know the language; and Definitions, which are verbal propositions whose predicates analyse the whole connotations of their subjects, are indispensable instruments of science (see chap.

xxii.).
Of course, hypothetical propositions may also be verbal, as _If the soul be material it is extended_; for 'extension' is connoted by 'matter'; and, therefore, the corresponding disjunctive is verbal--_Either the soul is not material, or it is extended_.

But a true divisional disjunctive can never be verbal (chap.xxi.Sec.4, rule 1).
On the other hand, when there is no such direct relation between subject and predicate that their connotations imply one another, but the predicate connotes something that cannot be learnt from the connotation of the subject, there is no longer tautology, but an enlargement of meaning--e.g., _Masters are degraded by their slaves; The horse is the noblest animal; Red is the favourite colour of the British army; If the soul is simple, it is indestructible_.


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