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

by George Hastings McNair

Circle 2 stands for teacher.

Circle 3 stands for man.

Circle 4 stands for biped.

Circle 5 stands for animal.

The progressive sorites proceeds from the smaller circle to the larger, thus:

All of circle 1 belongs to 2

All of circle 2 belongs to 3

All of circle 3 belongs to 4

All of circle 4 belongs to 5

Hence, All of circle 1 belongs to 5