Elementary Lessons in Logic: Deductive and Inductive : with Copious Questions and Examples, and a Vocabulary of Logical Terms |
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Page 1
... Necessary Laws of Thought . Before these definitions can be of any real use to us we must come to a clear understanding as to the meaning of the expressions ; and it will probably appear that there is no great difference between them ...
... Necessary Laws of Thought . Before these definitions can be of any real use to us we must come to a clear understanding as to the meaning of the expressions ; and it will probably appear that there is no great difference between them ...
Page 3
... necessary form of thought and reasoning . Compare , again , the following three things , — The earth , Planets , Bodies revolving in elliptic orbits . We cannot say , as before , that " the earth is identical with the planets ; " it is ...
... necessary form of thought and reasoning . Compare , again , the following three things , — The earth , Planets , Bodies revolving in elliptic orbits . We cannot say , as before , that " the earth is identical with the planets ; " it is ...
Page 4
... necessary form of thought which is necessary and true whatever the things may be to which it is applied . The form of argument may be expressed in several different ways , and we shall have to consider it minutely in the lessons on the ...
... necessary form of thought which is necessary and true whatever the things may be to which it is applied . The form of argument may be expressed in several different ways , and we shall have to consider it minutely in the lessons on the ...
Page 7
... necessary princi- ples and forms of thought , and thus teaches us to under- stand in what correct thinking consists ; but that it be- comes an art when it is occupied in framing rules to assist persons in detecting false reasoning . A ...
... necessary princi- ples and forms of thought , and thus teaches us to under- stand in what correct thinking consists ; but that it be- comes an art when it is occupied in framing rules to assist persons in detecting false reasoning . A ...
Page 11
... necessary index to the action of mind . Again , so long as we think correctly we must think of things as they are ; the state of mind within us must correspond with the state of things without us whenever an opportunity arises for ...
... necessary index to the action of mind . Again , so long as we think correctly we must think of things as they are ; the state of mind within us must correspond with the state of things without us whenever an opportunity arises for ...
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Common terms and phrases
ABCD ambiguous angles animal antecedent applied argument Aristotle assert belong bodies brittle called cause character circumstances combinations common compound conclusion connotation considered consists contains contrapositive conversion copula Crown 8vo defined definition denote disjunctive syllogism distinct distinguished earth Edition effect elementary employed equal exactly example exist experiment explained expressed fact fallacy fallacy of accident false Fcap figure genus geometrical gism give gravitation Greek heat hypothetical hypothetical syllogism Illicit Major Induction inference instance iron kind knowledge known language Latin Laws of Thought LESSON Logic logicians major premise major term material fallacies Mathematical meaning ment metals are elements method middle term mind minor term mode moods moon nature negative notion objects observed particular perfect planets possess predicate properties prove qualities quantity reader reasoning rules sentence simple species substances syllogism theory things tion treated treatise triangle true truth universal verb words
Popular passages
Page 240 - 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 16 - ... the discussion of such deeper questions of principle as are likely to present themselves to the reflective student in connexion with the methods and processes of his previous course.
Page 316 - Which of you convinceth me of sin ? And if I say the truth, why do ye not believe me? He that is of God heareth God's words : ye therefore hear them not, because ye are not of God.
Page 306 - But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy.
Page 20 - THE FIRST THREE SECTIONS OF NEWTON'S PRINCIPIA. With Notes and Illustrations. Also a Collection of Problems, principally intended as Examples of Newton's Methods. By PERCIVAL FROST, MA, late Fellow of St. John's College, Mathematical Lecturer of King's College, Cambridge.
Page 252 - Subduct from any phenomenon such part as is known by previous inductions to be the effect of certain antecedents, and the residue of the phenomenon is the effect of the remaining antecedents.
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Page 20 - Newton, by showing the extent to which they may be applied in the solution of problems ; he has also endeavoured to give assistance to the student who is engaged in the study of the higher branches of Mathematics, by representing in a geometrical form several of the processes employed in the Differential and Integral Calculus, and in the analytical investigations of Dynamics.
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