A Class Room Logic / Deductive and Inductive, with Special Application to the Science and Art of Teaching

by George Hastings McNair

(2) The symptoms suggest either malarial or typhoid fever; the physician is undecided till a blood test makes evident that it is not typhoid.

Considered argumentatively.

This disease is either malarial or typhoid fever;

If it is typhoid, the blood will reveal certain evidences;

But the blood does not reveal these evidences,

Hence the disease is not typhoid.

(3) The natural bent of the youth suggests the profession of either the ministry or teaching. He finally decides to follow the one in which he can best serve his fellows. This, after mature deliberation, appears to him to be the work of the teacher. Thrown into the form of an argument the following results:

I am best fitted for either the pulpit or the schoolroom;

If the schoolroom furnishes the richest field for helping my fellows, I will choose that work;

The schoolroom does appear to furnish such a field,