Reduction by impossibility is, when the goodnesse of the Syllogisme is so proued, as the aduersary denying the same, must needs be brought to some absurditie, as to confesse two Contradictories to be both true at once, or some proposition to be false, which he hath confessed before to be true, or is ma∣nifestly true of it selfe. But first we wil speake of Reduction of∣fensiue, and then of Reduction by impossibility; and because that Reduction offensiue is done sometime by conuersion, and sometime by transposition, and sometime by both at once: and againe, that sometime one of the premisses, somtime both, and sometime no more but the Conclusion onely is conuerted, and that sometime by simple conuersion, and sometime by conuer∣sion per accidens: the Schoolemen for •…•…asement of the memo∣rie, haue made eight of the Consonants, besides the Vowels in the words of Art before mentioned, to be significatiue, and to
The arte of logick Plainely taught in the English tongue, according to the best approued authors. Very necessary for all students in any profession, how to defend any argument against all subtill sophisters, and cauelling schismatikes, and how to confute their false syllogismes, and captious arguments. By M. Blundevile.
About this Item
- Title
- The arte of logick Plainely taught in the English tongue, according to the best approued authors. Very necessary for all students in any profession, how to defend any argument against all subtill sophisters, and cauelling schismatikes, and how to confute their false syllogismes, and captious arguments. By M. Blundevile.
- Author
- Blundeville, Thomas, fl. 1561.
- Publication
- London :: Printed by William Stansby, and are to be sold by Matthew Lownes,
- 1617.
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- Subject terms
- Logic -- Early works to 1800.
- Link to this Item
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http://name.umdl.umich.edu/A16218.0001.001
- Cite this Item
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"The arte of logick Plainely taught in the English tongue, according to the best approued authors. Very necessary for all students in any profession, how to defend any argument against all subtill sophisters, and cauelling schismatikes, and how to confute their false syllogismes, and captious arguments. By M. Blundevile." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A16218.0001.001. University of Michigan Library Digital Collections. Accessed June 15, 2024.
Pages
Page 151
declare how euery proposition ought to be reduced.
For first, these foure Consonants, b. c. d. f. (with one of the which euery vnperfect moode doth begin) doe shew that such vnperfect moodes ought to bee reduced into those perfect moodes, which doe begin with the like letter, as,
- Baralipton, Baroco, Bocardo, into Barbara,
- C•…•…lantes, Caesare, Camestres, into Celarent,
- Dabitis, Darapti, Disamis, Datisi, into Darij,
- Fapesmo, Frisesomorum, Felapton, Ferison, Festino, into Darij