An introductory text-book of logic - Mellone, Sydney - Rare Books at ...

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CHAPTER XI
THE PROBLEMS WHICH WE HAVE RAISED.
i. THROUGH all the preceding treatment of the more
elementary doctrines of Logic, we have been expounding
the essentials of what is rightly called the Traditional
Logic ; and, in order to make many
of its doctrines
and phrases more intelligible, we have connected them
with their Aristotelian fountainhead. But we have
stopped short of developing
some further issues which
they involve, although we have frequently come within
sight of these issues.
In the present chapter we propose to examine the
bearings of these more fundamental questions
in a
way which, it is hoped, will afford some guidance to
the student who wishes to pursue further the study
of Modern Logic in its philosophical aspects. We
shall take up the questions in the order in which they
have been raised in the previous exposition.
We have said that Logic deals with the principles
which regulate valid or correct thought, and on which
We
the validity of the thought depends (ch.
I.
i).
may call them postulates of knowledge, because with
out them not only science but everyday thought cannot
even begin to work. If they are untrustworthy, every
fabric of knowledge falls to pieces, for they are the
general bonds of connection which hold it together,