Book II. On Propositions
- On categorical propositions (1–20)
- On the conversion of propositions (21–9)
- On hypothetical propositions (30–7)
Read more about this topic: Sum Of Logic
Famous quotes containing the words book and/or propositions:
“I have this very moment finished reading a novel called The Vicar of Wakefield [by Oliver Goldsmith].... It appears to me, to be impossible any person could read this book through with a dry eye and yet, I don’t much like it.... There is but very little story, the plot is thin, the incidents very rare, the sentiments uncommon, the vicar is contented, humble, pious, virtuous—but upon the whole the book has not at all satisfied my expectations.”
—Frances Burney (1752–1840)
“It has often been argued that absolute scepticism is self-contradictory; but this is a mistake: and even if it were not so, it would be no argument against the absolute sceptic, inasmuch as he does not admit that no contradictory propositions are true. Indeed, it would be impossible to move such a man, for his scepticism consists in considering every argument and never deciding upon its validity; he would, therefore, act in this way in reference to the arguments brought against him.”
—Charles Sanders Peirce (1839–1914)