_i.e._ "No son of mine ever fails to be treated with respect."
pg079
(2) [see p. 64]
"All cats understand French;
Some chickens are cats."
Univ. "creatures"; m = cats; x = understanding French; y = chickens.
m_{1}x'_{0} + ym_{1} ¶ xy_{1} [Fig. II.
_i.e._ "Some chickens understand French."
(3) [see p. 64]
"All diligent students are successful;
All ignorant students are unsuccessful."
Univ. "students"; m = successful; x = diligent; y = ignorant.
x_{1}m'_{0} + y_{1}m_{0} ¶ x_{1}y_{0} + y_{1}x_{0} [Fig. I (b).
_i.e._ "All diligent students are learned; and all ignorant students are
idle."
(4) [see p. 66]
"All soldiers are strong;
All soldiers are brave.
Some strong men are brave."
Univ. "men"; m = soldiers; x = strong; y = brave.
m_{1}x'_{0} + m_{1}y'_{0} ¶ xy_{1} [Fig. III.
Hence proposed Conclusion is right.
(5) [see p. 67]
"I admire these pictures;
When I admire anything, I wish to examine it thoroughly.
I wish to examine some of these pictures thoroughly."
Univ. "things"; m = admired by me; x = these; y = things which I wish to
examine thoroughly.
x_{1}m'_{0} + m_{1}y'_{0} ¶ x_{1}y'_{0} [Fig. I (a).
Hence proposed Conclusion, xy_{1}, is _incomplete_, the _complete_ one
being "I wish to examine _all_ these pictures thoroughly."
pg080
(6) [see p. 67]
"None but the brave deserve the fair;
Some braggarts are cowards.
Some braggarts do not deserve the fair."
Univ. "persons"; m = brave; x = deserving of the fair; y = braggarts.
m'x_{0} + ym'_{1} ¶ x'y_{1} [Fig. II.
Hence proposed Conclusion is right.
(7) [see p. 69]
"No one, who means to go by the train and cannot get a
conveyance, and has not enough time to walk to the
station, can do without running;
This party of tourists mean to go by the train and cannot
get a conveyance, but they have plenty of time to
walk to the station.
This party of tourists need not run."
Univ. "persons meaning to go by the train, and unable to get a
conveyance"; m = having enough time to walk to the station; x = needing
to run; y = these tourists.
m'x'_{0} + y_{1}m'_{0} do not come under any of the three Figures. Hence
it is necessary to return to the Method of Diagrams, as shown at p. 69.
Hence there is no Conclusion.
[Work Examples § =4=, 12-20 (p. 100); § =5=, 13-24 (pp. 101,
102); § =6=, 1-6 (p. 106); § =7=, 1-3 (pp. 107, 108). Also read
Note (A), at p. 164.]
pg081
§ 3.
_Fallacies._
Public-domain text, read in full here on John Shaqi.
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