Elements of LogicE. H. Butler & Company, 1858 - 263 pages |
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Expressions et termes fréquents
abstract ambiguity analysis animals antecedent applied assert axioms Bacon belong Cæsar called categorical propositions Celarent Christianity Church classification clusion common term compound propositions conclusion conditional syllogisms consequent consider consists Convert the minor copula Darii definition deny dictum of Aristotle differentia dilemma disjunctive Disjunctive Syllogisms distributed divided division enthymeme error establish evident example expressed Fallacy of Division false Ferio figure formal fallacies genus gism Greek horse illicit process illustrate induction investigation irrelevant conclusion kinds language laws logical form logicians major premiss major term material fallacies meaning men are mortal method middle term mind minor term mood mortal nature object observed pages 12mo paronyms Philosophy physical predicate prefix prem Price quadrupeds quantity reason reduced religion rules simple sion sition sorites species subject-matter summum genus syllogistic form Synthesis things tion true truth undistributed universal affirmative universal negative words writers
Fréquemment cités
Page 219 - He that despised Moses' law died without mercy under two or three witnesses : of how much sorer punishment suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace...
Page 187 - When the mariner has been tossed for many days in thick weather, and on an unknown sea, he naturally avails himself of the first pause in the storm, the earliest glance of the sun, to take his latitude, and ascertain how far the elements have driven him from his true course. Let us imitate this prudence, and, before we float farther on the waves of this debate, refer to the point from which we departed, that we may at least be able to conjecture where we now are. I ask for the reading of the resolution...
Page 134 - ... 2. None but Whites are civilized : the ancient Germans were Whites : therefore they were civilized. 3. None but Whites are civilized : the Hindoos are not Whites : therefore they are not civilized. 4. None but civilized people are Whites : the Gauls were Whites : therefore they were civilized. 5. No one is rich who has not enough : no miser has enough : therefore no miser is rich. 6. If penal laws against Papists were enforced, they would be aggrieved : but penal laws against them are not enforced...
Page 187 - Mr. President, when the mariner has been tossed, for many days, in thick weather, and on an unknown sea, he naturally avails himself of the first pause in the storm, the earliest glance of the sun, to take his latitude, and ascertain how far the elements have driven him from his true course. Let us imitate this prudence; and before we float further, on the waves of this debate, refer to the point from which we departed, that we may, at least, be able to form some conjecture where we now are. I ask...
Page 218 - This is a very open and familiar illustration, but serves to indicate the dangers to which it is liable. Almost all the processes of discovery in natural religion are by means of the reasoning d posteriori. Argument d fortiori. — This is a method by which we establish a stronger conclusion even than ordinary premisses need to warrant us. Thus, A is greater than B. B is greater than C. A is greater than C. That this conclusion is just there can. be no doubt ; and that the form of it is not exactly...
Page 174 - ... which involves a fallacy of illicit process. Thus, XY Maj. prem. All responsible beings are accountable. ZX Min. prem. Brutes are not responsible beings. ZY Therefore Brutes are not accountable. All X is Y, No Z is X, No Z is Y. In which Y, which is distributed in the conclusion, — being the predicate of a negative proposition, — is undistributed in the major premiss : an illicit process of the major term. It will be observed in this latter instance, that the conclusion is, we believe, a...