The Art of Public Speaking
syllogism there should be only three terms. 2. Of these three only one can be the middle term. 3. One premise
must be affirmative. 4. The conclusion must be negative if either premise is negative. 5. To prove a negative,
one of the premises must be negative.
Summary of Regulating Principles: 1. Terms which agree with the same thing agree with each other; and
when only one of two terms agrees with a third term, the two terms disagree with each other. 2. "Whatever is
affirmed of a class may be affirmed of all the members of that class," and "Whatever is denied of a class may
be denied of all the members of that class."]
[Footnote 27: All the speakers were from Brown University. The affirmative briefs were used in debate with
the Dartmouth College team, and the negative briefs were used in debate with the Williams College team.
From The Speaker, by permission.]