Elements of Logick: Or, A Summary of the General Principles and Different Modes of Reasoning |
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African slave trade analogy animal antecedent applied asserted attributes bird called cate cause chance CHAPTER circum circumstances compound proposition conclusion connexion copula deduce definition degree dence denominated denote DISJUNCTIVE SYLLOGISMS distin distinct Doctrine of Chances Elem employed enthymeme equal erwise Euathlus existence extension fact genus gism guished HARVARD COLLEGE improbability individual induction ject kinds Kirwan knowledge language Logick major premise major term mathematicks ment middle term mind minor term modes of reasoning Moral Evidence moral reasoning nature ness Novum Organum objects observation operations ositions particular negative person Phil principles probability proof prop properties propo prove qualities regular syllogism rules sect sense sion sition sometimes soning sophism species specifick difference Stewart strative reasoning subject and predicate subject or predicate syllogistick synthetick method testimony things tion universal affirmative universal negative universal proposition whole witnesses words
Popular passages
Page ii - District Clerk's Office. BE IT REMEMBERED, That on the seventh day of May, AD 1828, in the fifty-second year of the Independence of the UNITED STATES OF AMERICA, SG Goodrich, of the said District, has deposited in this office the...
Page 96 - The first sentence where the word occurs, affords, it is probable, sufficient foundation for a vague conjecture concerning the notion annexed to it by the author ; — some idea or other being necessarily substituted in its place, in order to make the passage at all intelligible. The next sentence where it is involved, renders this conjecture a little more definite ; a third sentence contracts the field of doubt within still narrower limits ; till, at length, a more extensive induction fixes completely...
Page 167 - Since it is the understanding that sets man above the rest of sensible beings, and gives him all the advantage and dominion which he has over them; it is certainly a subject, even for its nobleness, worth our labour to inquire into.
Page 104 - ... like succession of day and night. 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...
Page 104 - 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. There is some probability in this conclusion from analogy.
Page 136 - Upon this ground it is that I am bold to think, that morality is capable of demonstration, as well as mathematics ; since the precise real essence of the things moral words stand for may be perfectly known ; and so the congruity or incongruity of the things themselves be certainly discovered, in which consists perfect knowledge.
Page 104 - 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.
Page 180 - The mind is a thinking substance. A thinking substance is a spirit. A spirit has no composition of parts. That which has no composition of parts is indissoluble. That which is indissoluble is immortal . .•, The mind is immortal.
Page 137 - And it must be great want of ingenuity (to say no worse of it) to refuse to do it : since a definition is the only way whereby the precise meaning of moral words can be known ; and yet a way whereby their meaning may be known certainly, and without leaving any room for any contest about it.
Page 92 - The only reason for supposing such a connection in any instance is, that we have invariably found certain things to have been conjoined in fact ; and this experience, in many cases, produces a conviction equal to that of demonstration.