Deductive Logic

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Deductive Logic 1. LOGIC is divided into two branches, namely (1) Inductive, (2) Deductive. 2. The problem of inductive logic is to determine the actual truth or falsity of proposi tions: the problem of deductive logic is to determine their relative truth or falsity, that is to say, given such and such propositions as true, what others will follow from them. 3. Hence in the natural order of treatment inductive logic precedes deductive, since it is induction which supplies us with the general truths, from which we reason down in our deductive inferences. 4. It is not, however, with logic as a whole that we are here concerned, but only with deductive logic, which may be defined as The Science of the Formal Laws of Thought. 5. In order fully to understand this definition we must know exactly what is meant by 'thought,' by a 'law of thought,' by the term 'formal,' and by 'science.' 6. Thought, as here used, is confined to the faculty of comparison. All thought involves comparison, that is to say, a recognition of likeness or unlikeness. ......Buy Now (To Read More)Product details Ebook Number: 6560 Author: Stock, St. George William Joseph Release Date: Sep 1, 2004 Format: eBook Language: English Show more