The Logic of Names: An Introduction to Boole's Laws of ThoughtJ. Walton, 1869 - 86 páginas |
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Términos y frases comunes
abstract adjective afferent nerve affirmative animal Archbishop Thomson attributes body Cæsar called cerebral hemispheres class names common language common name compound name compound sensation concept connection connotation constitute copula defined definition distinction distinguished division Dugald Stewart efferent elementary elements English equivalent exhibition existence expression facts of consciousness Gauls Grammar group of sensations guage Hartley horse Hughlings individual infima Jevons kaleidoscope Laws of Thought logic of names logical equality logical name logical relation logical whole logically multiplied logicians matter Max Müller meaning mental mind negative name negative proposition nervous action nervous centre noun numerical value object particular perception philosopher plural pound name predicate pronominal proper name provisional proximate genus re-excited repetition sation sense sentence separate signified simple name simple sensations Sir William Hamilton speech stands star Street Madison substantive supposed thing tion triangle unit term University of Wisconsin-Madison viewed words
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Página 12 - The possibility of all education (of which military drill is only one particular form) is based upon the existence of this power which the nervous system possesses, of organizing conscious actions into more or less unconscious or reflex operations. It may be laid down as a rule, that if any two mental states be called up together or in succession 'with due frequency and vividness, the subsequent production of the one of them will suffice to call up the other, and that whether we desire it or not...
Página 83 - Let us conceive, then, of an Algebra in which the symbols x, y, z, &c. admit indifferently of the values 0 and 1, and of these values alone. The laws, the axioms, and the processes, of such an Algebra will be identical in their whole extent with the laws, the axioms, and the processes of an Algebra of Logic.
Página 25 - It is the same with all nouns. They all express originally one out of the many attributes of a thing, and that attribute, whether it be a quality or an action, is necessarily a general idea. The word thus formed was in the first instance intended for one object only, though of course it was almost immediately extended to the whole class to which this object seemed to belong.
Página 10 - We make use of the name commonly given to the notion as a symbol, even for ourselves, of all the properties it possesses. A name then, employed in thought, is called a symbolical cognition; and the names we employ in speech are not always symbols to another of what is explicitly understood by us, but quite as often are symbols both to speaker and hearer, the full and exact meaning of which neither of them stop to unfold, any more than they regularly reflect that every sovereign which passes through...
Página 24 - The inhabitants, (he says), were afraid to come near our cows and horses, nor did they form the least conception of their nature. But the sheep and goats did not surpass the limits of their ideas, for they gave us to understand, they knew them to be birds.
Página 9 - But he cannot repeat such words and phrases at his own wish or at the desire of others. And as he is able to copy writing, so he can, when circumstances dictate, as it were, to him, give utterance to phrases of more special applicability. Thus, a child being in danger of falling, one speechless patient, a woman, was surprised into exclaiming, "Take care.
Página 15 - ... singular of the class, we may do it under any. Thus, for example, we cannot actually represent the bundle of attributes contained in the concept man as an absolute object by itself, and apart from all that reduces it from a general cognition to an individual representation. We cannot figure in imagination any object adequate to the general notion or term man; for the man to be here imagined must be neither tall nor short, neither fat nor lean, neither black nor white, neither man nor woman, neither...
Página 8 - ... language. The typical patient in this disease misuses words or cannot use words at all, to express his thoughts ; nor can he express his thoughts by writing, or by any signs sufficiently elaborate to serve instead of vocal or written words ; nor can he read books for himself. But ho can smile, laugh, cry, sing, and employ rudimentary signs of gesticulation.
Página 11 - The former expresses merely that change in the state of the mind which is produced by an impression upon an organ of sense ; (of which change we can conceive the mind to be conscious, without any knowledge of external objects) : the latter expresses the knowledge we obtain, by means of our sensations, of the qualities of matter.
Página 9 - Bnt in this, as in every other case, the patient remains perfectly incompetent to repeat at pleasure the phrase he has just used so appropriately, and has so distinctly uttered. ... It would seem that the part of the brain affected in such cases is that which is susceptible of education to language, and which has been after the birth of the patient so educated. The effect of the disease, in relation to speech, is to leave the patient as if he had never been educated at all to language, and had been...