Varchi says: Just as the logician uses for his means the noblest of all instruments, that is, demonstration or the demonstrative syllogism; so the dialectician, the topical syllogism; and the sophist, the sophistical, that is, the apparent and deceitful; the rhetorician, the enthymeme, and the poet, the example, which is the least worthy of all.

The kinds of argument treated in the classical rhetoric were two: the enthymeme, or rhetorical syllogism; and the rhetorical induction or example.

And when the first error has thus been duly corrected by a brief and regular syllogism, either the same pupil or an other should immediately proceed, and say, "Secondly, Not proper again, because," &c.

"A disjunctive syllogism is one whose major premise is disjunctive.

Logic used the demonstrative syllogism and the scientific induction, rhetoric used the enthymeme or rhetorical syllogism and the example or popular induction, poetic used the example alone.

This trick consists in stating a false syllogism.

The reason is that we have never read for this purpose, we have never written for this purpose, so that we may in our actions use in a way conformable to nature the appearances presented to us; but we terminate in this, in learning what is said, and in being able to expound it to another, in resolving a syllogism, and in handling the hypothetical syllogism.

His wit gave point to the most irrelevant personalities, and cogency to the most illogical syllogisms.

He never learned to cram his convictions into mere phrases, and his judgments into all-inclusive syllogisms.

Just as Columbus reached America, carried on a series of logical syllogisms, built upon unreal pictures of a straight path to the East, Claude Bernard opened up the continent of the internal secretions to the experimental enthusiasts of his time by a discovery which today is not grouped among the phenomena of internal secretion at all.

It may not be enough to prove at once that the syllogism is defective: still less is it a sufficient warrant for establishing an opposite syllogism.

This makes the major proposition in a practical syllogism.

Deductive reasoning is the pure syllogism which shows why a third proposition must necessarily result if two others are assumed, but which does not help us to determine whether the two initial statements are true or not.

Mr Mill is, nevertheless, of opinion (pp. 439-443) that though 'the quantified syllogism is not a true expression of what is in thought, yet writing the predicate with a quantification may be sometimes a real help to the Art of Logic.'

Varchi says: Just as the logician uses for his means the noblest of all instruments, that is, demonstration or the demonstrative syllogism; so the dialectician, the topical syllogism; and the sophist, the sophistical, that is, the apparent and deceitful; the rhetorician, the enthymeme, and the poet, the example, which is the least worthy of all.

A Formal or verbal syllogism depends essentially on the ability of its Middle Term to connect the terms in its conclusion.

To the categorical, hypothetical, and disjunctive syllogisms correspond the three concepts of reason, the soul or the thinking subject, the world or the totality of phenomena, and God, the original being or the supreme condition of the possibility of all that can be thought.

" An example of the conditional syllogism which might have amused even a writer to the signet, if he had not been at the very moment busy in the examination of the handwriting of the funeral letter and that of the paper of repudiation and malisonthe resemblance, or rather the identity of which was so striking, as to reduce all his theories to confusion.