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.

Of Syllogismes made in oblique Cases, and of the sixe Habili∣ties, and three defects of a Syllogisme.

WHat meane you by oblique Cases?

You learned in your Accidents, that euery Noune hath sixe Cases, (that is to say) the No∣minatiue, the Genitiue, the Datiue, the Accusa∣tiue the Vocatiue, and the Ablatiue, wherof the Nominatiue is onely right, and all the rest are called oblique: as this is a Syllogisme made in oblique Cases: euery drawing beast belongeth to man, or is the beast of man: but an oxe is a drawing beast: Ergo, an oxe belongeth to man, or is the beast of man, and as for the sixe habilities called sex potestates Syllo∣gismi, they are but meanes to proue the goodnesse of one Syl∣logisme by another, or to shew which is more vniuersall, or comprehendeth more then another, or to conclude a trueth of false premisses, which God wot is a sillie kinde of conclusion, the best parts of which habilities are more easily learned by the rules and examples before giuen, then by those that they set downe in their treatises touching the same. Likewise the three defects, are none other but Elenches, or Fallaxes, wher∣of there bee thirteene kindes set downe by Aristotle himselfe, whereof we shall speake hereafter, in their place, so as they might say that there are thirteene defects as well as three, and therefore leauing to trouble you with these things, I minde here to treate of a compound Syllogisme.