Book, Paragraph

 1      I, 5 |      necessity is not perfectly established merely from the original
 2      I, 19|        opposite affirmations be established: consequently no syllogism
 3      I, 19|        opposite affirmations be established, since we have shown a case
 4      I, 23|          since the falsehood is established in reductions ad impossibile
 5      I, 25|   unless the same conclusion is established by different pairs of propositions;
 6      I, 25|         the conclusion E may be established through the propositions
 7      I, 25|       cannot be reached as C is established by means of A and B. Suppose
 8      I, 26|      what sort of conclusion is established in each figure, and in how
 9      I, 27|       which obtain normally are established syllogistically from premisses
10      I, 28| subjects of that which is being established (the subjects of which it
11      I, 32|     know what sort of thesis is established in each figure, and in which
12      I, 32|       in hand. If the thesis is established in more figures than one,
13      I, 38|      the same when something is established without qualification and
14      I, 45|       figure, if they have been established in one figure by syllogism,
15     II, 2 |    reason. The reason cannot be established from false premisses: why
16     II, 18|     more than two, e.g. if C is established through A and B, and these