Logic, Inductive and Deductive |
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Common terms and phrases
abstract admission admit affirmative analysis antecedent applied argument Aristotle Aristotle's Bacon belief called Canon causal connexion causal sequence cause circumstances coincidence common attributes common speech concept conclusion confusion connotation Connotation and Denotation Contradictory contrapositive Deduction definition deny dialectic dispute distinction division doctrine effect Enthymeme error example explanation expressed fact fallacy Figure follows Formal genus grammatical hypothesis Hypothetical Hypothetical Syllogism Ignoratio Elenchi Immediate Inference individual Inductive Logic instances interpretation knowledge Law of Identity logicians Major Premiss meaning mediæval ment merely Method of Agreement Method of Difference Mill Mill's mind Minor mode moods nature negative not-P Novum Organum objects observed particular phenomena positive practical predicate predicate term principle probability proof proposition Quality quantity question reason recognised relation resemblance scientific sense signified simply Singular name Socrates species Suppose Syllogism syllogistic form technical theory things thought tion tradition true truth uniformities Universal vera causa word
Popular passages
Page 309 - If an instance in which the phenomenon under investigation occurs, and an instance in which it does not occur, have every circumstance in common save one, that one occurring only in the former; the circumstance in which alone the two instances differ is the effect, or the cause, or an indispensable part of the cause, of the phenomenon.
Page 329 - Whatever phenomenon varies in any manner whenever another phenomenon varies in some particular manner, is either a cause or an effect of that phenomenon, or is connected with it through some fact of causation.
Page 327 - If tWO or more instances in which the phenomenon occurs have only one circumstance in common, while two or more instances in which it does not occur have nothing in common save the absence of that circumstance, the circumstances in which alone the two sets of instances differ is the effect, or the cause, or an indispensable part of the cause, of the phenomenon.
Page 321 - If two or more instances of the phenomenon under investigation have only one circumstance in common, the circumstance in which alone all the instances agree is the cause (or effect) of the given phenomenon.
Page 296 - I am an old man, sir,' quoth he, 'and I may remember the building of Tenterton steeple; and I may remember when there was no steeple at all there. And before that...
Page 369 - Some of them have moons, that serve to give them light in the absence of the sun, as our moon does to us. They are all, in their motions, subject to the same law of gravitation as the earth is. From all this similitude, it is not unreasonable to think that those planets may, like our earth, be the habitation of various orders of living creatures.
Page 369 - Thus we may observe a very great similitude between this earth which we inhabit, and the other planets, Saturn, Jupiter, Mars, Venus, and Mercury. They all revolve round the sun, as the earth does, although at different distances, and in different periods. They borrow all their light from the sun, as the earth does. Several of them are known to revolve round their axis like the earth, and by that means must have a like succession of day and night.