Logic for children, deductive and inductive, the substance of two addresses to teachersHodgson & Son, 1882 - 94 pages |
Common terms and phrases
¹(AE ¹(AEI A-words absent action AE Ae AE and Ae AE EI Ae or taE AetaE Ai AE ambiguous antecedent arrangements asser assertions respecting ball called on Richard cause column complexes conception conclusion condition consequently consistent convenient copula counters deductive logic diagram distinction doubtful E-things Euathlus example experience expressed extreme fact false gism given gives AEI happen Hence implies AE inconsistent induction inductive reasoning invariable unconditional kind of syllogism knowledge large number law of averages laws Laws of Thought least one word letters limitates mathematical Means unlike merely method mind nature notion objects observation occur old logic PaEI Pompey possessing the attribute Prof Protagoras pupil quadruped range of thought Richard X SA E scientific sets of events simple suppose supposition taBc tae tei taEi teacher thing called tion true truth verifiable whole word containing writing
Popular passages
Page 80 - The Science of Modern times, however, has taken a more special direction. Fixing its attention exclusively on the Order of Nature, it has separated itself •wholly from Theology, whose function it is to seek after its Cause. In this, Science is fully justified, alike by the entire independence of its objects, and by the historical fact that it has been continually hampered and impeded in its search for the Truth as it is in Nature, by the restraints which Theologians have attempted to impose upon...
Page 46 - LOGIC. ELEMENTARY LESSONS IN LOGIC; Deductive and Inductive, with copious Questions and Examples, and a Vocabulary of Logical Terms. By W. STANLEY JEVONS, MA, Professor of Political Economy in University College, London. New Edition. Fcap. 8vo. 3*. 6d. " Nothing can be better for a school-book. "-^-GUARDIAN. "A manual alike simple, interesting, and scientific."— ATHHN/UJH.
Page 47 - An OUTLINE of the NECESSARY LAWS of THOUGHT : a Treatise on Pure and Applied Logic.
Page 65 - Adjicere jam liceret nonnulla de spiritu quodam subtilissimo corpora crassa pervadente, et in iisdem latente; cujus vi et actionibus particulae corporum ad minimas distantias se mutuo attrahunt, et contiguae factae cohaerent...
Page 76 - In asking this question, we have entered upon an appalling task. The word represented by "cause" has sixtyfour meanings in Plato and forty-eight in Aristotle. These were men who liked to know as near as might be what they meant; but how many meanings it has had in the writings of the myriads of people who have not tried to know what they meant by it will, I hope, never be counted.
Page 89 - By scientific thought we mean the application of past experience to new circumstances, by means of an observed order of events.
Page 77 - ... know all about it, the laws involved being so familiar that you seem to see how the beginning must have been followed by the end, then you apply that as a simile to all other events whatever, and your idea of cause is determined by it. Only when a case arises, as it always must, to which the simile will not apply, you do not confess to yourself that it was only a simile and need not apply to everything, but you say, " The cause of that event is a mystery which must remain for ever unknown to...
Page 69 - The aim of scientific thought, then, is to apply past experience to new circumstances : the instrument is an observed uniformity in the course of events. By the use of this instrument it gives us information transcending our experience, it enables us to infer things that we have not seen from things that we have seen ; and the evidence for the truth of that information depends on our supposing that the uniformity holds good beyond our experience. I...
Page 83 - Keepers as obsequious attendants, is so "possessed" by the conception framed by his disordered intellect, that he does project it out of himself into his surroundings; his refusal to admit the corrective teaching of Common Sense being the very essence of his malady. And there are not a few persons abroad in the world, who equally resist the teachings of Educated Common Sense, whenever they run counter to their own preconceptions; and who may be regarded as— in so far— affected with what I once...
Page 89 - Remember, then, that it is the guide of action; that the truth which it arrives at is not that which we can ideally contemplate without error, but that which we may act upon without fear; and you cannot fail to see that scientific thought is not an accompaniment or condition of human progress, but human progress itself.