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.

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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.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Logic -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A16218.0001.001
Cite this Item: "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 7, 2024.

Pages

CHAP. XI.

An obiection concerning the three Figures, and Moodes belonging to the same.

TO what purpose serue so many figures and moodes, sith the first figure, and the foure first moodes be∣longing to the same are onely perfect, yea, and so perfect indeed, as the Mathematicians in seeking out the truth of any probleme, will vse none other, because the first figure alone doth suffice to con∣clude all kindes of problemes whatsoeuer they be, whereby it should seeme, that the two other figures, with their moodes, be superfluous?

They be not altogether superfluous; for as the first figure serueth chiefly and onely to conclude an vniuersal affirmatiue, so the second figure serueth to conclude an vniuersal negatiue, and the third figure to conclude both a particular affirmatiue, and also a particular negatiue, as you may perceiue very well by the examples before rehearsed; neither be the fifteen vnper∣fect moodes so vnperfect, but that they may easily be reduced vnto the foure perfect, by one of these wayes heere following, (that is to say) either by conuersion, or by transposing of the premisses: or else by a Syllogisme leading to impossibilitie, of which three wayes of Reduction we come now to speake: by which things it doth plainely appeare what difference there is betwixt a perfect and vnperfect Syllogisme; for the perfect Syllogisme hath no need of these helpes to make the Conclu∣sion manifest, as hath been said before.