Chapter 19

_SYLLOGISMS._

§ 1.

_Representation of Syllogisms._

Rules 73

§ 2.

_Formulæ for Syllogisms._

Three Formulæ worked out:--

Fig. I. xm_{0} + ym'_{0} ¶ xy_{0} 75

its two Variants (a) and (b) "

Fig. II. xm_{0} + ym_{1} ¶ x'y_{1} 76

Fig. III. xm_{0} + ym_{0} + m_{1} ¶ x'y'_{1} 77

=Table IX.= Formulæ and Rules 78

Examples worked briefly, as models "

§ 3.

_Fallacies._

'=Fallacy=' 81

Method of finding Forms of Fallacies 82

Forms best stated in _words_ "

Three Forms of Fallacies:--

(1) Fallacy of Like Eliminands not asserted to exist "

(2) Fallacy of Unlike Eliminands with an Entity-Premiss 83

(3) Fallacy of two Entity-Premisses "

§ 4.

_Method of proceeding with a given Pair of Propositions._

Rules 84

pg-xxviii =BOOK VII.=

=SORITESES.=