CodalSearch this book — or all of Codal…⌘K
Projects
Sign inStart a book
nydus/The Game of LogicPublic

This instructional book presents a logic game played with a diagram and nine counters. It explains how to express propositions through the relationship between things and their attributes.

Page 29 of 126
Table of Contents

NEW LAMPS FOR OLD.

compartments, No. 11 and No. 12, are EMPTY. And this, of course, is represented by

                   -------------------
                  |         |         |
                  |    _____|_____    |
                  |   |     |     |   |
                  |   |  0  |  0  |   |
                  |   |     |     |   |
                   -------------------

And now how are we to represent the contradictory Proposition "SOME x are m"? This is a difficulty I have already considered. I think the best way is to place a red counter ON THE DIVISION-LINE between No. 11 and No. 12, and to understand this to mean that ONE of the two compartments is 'occupied,' but that we do not at present know WHICH. This I shall represent thus:--

29