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

by George Hastings McNair

1. A NEGATIVE ASPECT.

It has been remarked that “Logic as a science makes known the laws and forms of thought and as an art suggests conditions which must be fulfilled to think rightly.” In recent chapters we have discussed the second aspect of the definition; in these we have attempted to answer the question, “What rules must be followed in order to reason correctly?” We are now ready to treat the same aspect from a negative point of view namely, what errors must be avoided in order to reason correctly? What are the fallacies which we must strive to avoid in our own thinking, and attempt to correct in the thinking of others?