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" 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... "
The Principles of Logic: For High Schools and Colleges - Σελίδα 148
των Aaron Schuyler - 1859 - 168 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

Blackwood's Magazine, Τόμος 54

1843 - 832 σελίδες
...; THEREFORE Socrates is mortal' — it is unanswerahly urged hy the adversaries of the syllogistic theory, that the proposition, Socrates is mortal,...more general assumption, All men are mortal ; that we cannot he assured of the mortality of all men, unless wo were previously certain of the mortality of...

Blackwood's Edinburgh Magazine, Τόμος 54

1843 - 1380 σελίδες
...; THEREFORE Socrates is mortal" — it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal,...more general assumption, All men are mortal ; that we cannot be assured of the mortality of all men, unless we were previously certain of the mortality of...

A System of Logic, Ratiocinative and Inductive: Being a Connected ..., Τόμος 1

John Stuart Mill - 1851 - 530 σελίδες
...therefore -•'Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic f. I theory, that the proposition, Socrates is mortal,...in the more general assumption, All men are mortal: X_that we cannot be assured of the mortality of all men, unless ' we are already certain of the mortality...

Elements of Logic: On the Basis of Lectures by William Barron ... With Large ...

James Robert Boyd - 1856 - 266 σελίδες
...LOGICAL VALUE OK THE SYLLOGISM. 227 it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, " Socrates is mortal,"...general assumption, " All men are mortal :" that we cannot be assured of the mortality of all men, unless we were previously certain of the mortality of...

The Science of Logic: Or, An Analysis of the Laws of Thought

Asa Mahan - 1857 - 396 σελίδες
...man ; Therefore, Socrates is mortal ; it is unanswerably urged by the adversaries of the syllogistic theory that the proposition, ' Socrates is mortal,'...general assumption, ' All men are mortal ;' that we cannot be assured of the mortality of all men, unless we are previously certain of the mortality of...

Elements of Logic

James Robert Boyd - 1857 - 268 σελίδες
...LOGICAL VALUE OF THK SYLLOGISM. 227 it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, " Socrates is mortal," is presupposed in the more general assumption, " AH men are mortal :" that we cannot be assured of the mortality of all men, unless we were previously...

A System of Logic, Ratiocinative and Inductive

John Stuart Mill - 1858 - 666 σελίδες
...Socrates is mortal, is presupposed in the more general assumption, All men are mortal : that we cannot be assured of the mortality of all men, unless we were previously certa.ll of tho mortality of every individual man : that if it be still doubtful whether Socrates,...

A System of Logic, Ratiocinative and Inductive: Being a Connected View of ...

John Stuart Mill - 1859 - 632 σελίδες
...Socrates is mortal, is presupposed in the more general assumption, All men are mortal : that we cannot be assured of the mortality of all men, unless we were previously certain of t^ mortality of every individual man : that if it be still doubtful whether Socrates, or any other...

A treatise on logic, or, The laws of pure thought

Francis Bowen - 1864 - 480 σελίδες
...man; Therefore, Socrates is mortal; it is unanswerably urged by the adversaries of the Syllogistic theory, that the proposition, ' Socrates is mortal,'...general assumption, ' All men are mortal'; that we cannot be assured of the mortality of all men, unless we were previously certain of the mortality of...

Logic: Designed as an Introduction to the Study of Reasoning

John Leechman - 1864 - 244 σελίδες
...man ; therefore, Socrates is mortal ; it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal,...more general assumption, All men are mortal : that we cannot be assured of the mortality of all men, unless we were previously certain of the mortality of...




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