Elements of Logic: On the Basis of Lectures by William Barron ... With Large Supplementary Additions, Chiefly from Watts, Abercrombie, Brown, Whately, Mills, and ThomsonJames Robert Boyd A. S. Barnes & Company, 1856 - 243 من الصفحات |
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الصفحة 15
... deductions that result from variously comparing them with one another . - London Cyc . ] 16 OBJECT OF LOGIC . and the design of the LECTURE I Object of Logic-Its utility-Operations of the mind-Ideas- simple and complex-distinct and obscure.
... deductions that result from variously comparing them with one another . - London Cyc . ] 16 OBJECT OF LOGIC . and the design of the LECTURE I Object of Logic-Its utility-Operations of the mind-Ideas- simple and complex-distinct and obscure.
الصفحة 22
... comparing them , we perceive accurately whether they agree or disagree ; and if they disagree , how great the excess of one is above another , so that we can affirm , either that they are equal , or that the one exceeds the other by a ...
... comparing them , we perceive accurately whether they agree or disagree ; and if they disagree , how great the excess of one is above another , so that we can affirm , either that they are equal , or that the one exceeds the other by a ...
الصفحة 27
... comparing the conception man with other conceptions , cow , sheep , wolf , whale , and observing the mark common to all , that they suckle their young , we form the wider conception mammalia , -wider , because it includes man and many ...
... comparing the conception man with other conceptions , cow , sheep , wolf , whale , and observing the mark common to all , that they suckle their young , we form the wider conception mammalia , -wider , because it includes man and many ...
الصفحة 29
... Comparing plant with ge- ranium , for example , we see that plant includes ten thousand times more objects , since the oak , and fir , and lichen , and rose , and countless others , including geranium itself , are implied in it . This ...
... Comparing plant with ge- ranium , for example , we see that plant includes ten thousand times more objects , since the oak , and fir , and lichen , and rose , and countless others , including geranium itself , are implied in it . This ...
الصفحة 35
... comparing ideas with their archetypes , nothing more is requisite than patience and attention ; for , by the exercise of these qualities , we shall render our ideas as adequate and accurate as it is in our power to make them . We should ...
... comparing ideas with their archetypes , nothing more is requisite than patience and attention ; for , by the exercise of these qualities , we shall render our ideas as adequate and accurate as it is in our power to make them . We should ...
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عبارات ومصطلحات مألوفة
A. S. BARNES admit agree agreement or disagreement analogy angles animals appear argu argument Aristotle ascertain asserted attention attributes authority axiom beautiful called cause complex ideas conception conclusion consists definition demonstration denoted dispute doctrine effect employed ence enthymeme equal evidence example exist explain expression facts fallacy figure genus gism happy human Idola Fori Idola Theatri Ignoratio Elenchi illustration important individual induction inference inquiry intermediate ideas intuitive investigation judgment kind knowledge learned LECTURE logic logicians major premise major term manner matter means ment method middle term mind minor term mode moral nature objects observed opinion Paradise Lost philosophy predicate prejudices principle probable process of reasoning proof proposition prove quadrupeds qualities relation render rules sense simple ideas sition Socrates SOCRATIC METHOD sophism species supposed syllogism syllogistic testimony thing thinking thought tion triangle true truth universal affirmative universal negative whole words
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الصفحة 168 - If I had not done among them the works which none other man did, they had not had sin: but now have they both seen and hated both me and my Father.
الصفحة 227 - All men are mortal, Socrates is a man, therefore Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal, is presupposed in the more general assumption, All men are mortal...
الصفحة 41 - At the end of the seventeenth and the beginning of the eighteenth century...
الصفحة 168 - ... in their schools of philosophy. Christi- Accordingly there was a Presumption anity. against the Gospel in its first announcement. A Jewish peasant claimed to be the promised deliverer, in whom all the nations of the earth were to be blessed.
الصفحة 167 - Presumption" on your side, and can but refute all the arguments brought against you, you have, for the present at least, gained a victory: but if you abandon this position, by suffering this Presumption to be forgotten, which is in fact leaving out one of, perhaps, your strongest arguments, you may appear to be making a feeble attack, instead of a triumphant defence.
الصفحة 231 - But those animals profit by experience, and avoid what they have found to cause them pain, in the same manner, though not always with the same skill, as a human creature. Not only the burnt child, but the burnt dog, dreads the fire. I believe that, in point of fact, when drawing inferences from our personal experience, and not from maxims handed down to us by books or tradition, we much oftener conclude from particulars to particulars directly, than through the intermediate agency of any general...
الصفحة 226 - It must be granted that in every syllogism, considered as an argument to prove the conclusion, there is a petitio principii. When we say, All men are mortal, Socrates is a man, therefore Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic theory that the proposition, "Socrates is mortal...
الصفحة 226 - Logicians have been remarkably unanimous in their mode of answering this question. It is universally allowed that a syllogism is vicious if there be anything more in the conclusion than was assumed in the premisses. But this is, in fact, to say, that nothing ever was, or can be, proved by syllogism, which was not known, or assumed to be known, before.
الصفحة 231 - The child, who, having burnt his fingers, avoids to thrust them again into the fire, has reasoned or inferred, though he has never thought of the general maxim, Fire burns.
الصفحة 230 - Not one iota is added to the proof by interpolating a general proposition. Since the individual cases are all the evidence we can possess, evidence which no logical form into which we choose to throw it can make greater than it is ; and since that evidence is either sufficient in itself, or, if insufficient for...