Symbolic Logic
by Lewis Carroll
“Book 3: Chapter 2”
Additional Information
- Year Published: 1896
- Language: English
- Country of Origin: United States of America
- Source: Carroll, L. (1896). Symbolic Logic. New York; Macmillan & Co.
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Readability:
- Flesch–Kincaid Level: 10.5
- Word Count: 191
- Genre: Informational
- Keywords: math history, mathematics
- ✎ Cite This
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CHAPTER II.
COUNTERS.
Let us agree that a Red Counter, placed within a Cell, shall mean “This Cell is occupied” (i.e. “There is at least one Thing in it”).
Let us also agree that a Red Counter, placed on the par- tition between two Cells, shall mean “The Compartment, made up of these two Cells, is occupied; bit it is not known whereabouts, in it, its occupants are.” Hence it may be understood to mean “At least one of these two Cells is occupied: possibly both are.”
Our ingenious American cousins have invented a phrase to describe the condition of a man who has not yet made up his mind which of two political parties he will join: such a man is said to be “sitting on the fence.” This phrase exactly describes the condition of the Red Counter.
Let us also agree that a Grey Counter, placed within a Cell, shall mean “This Cell is empty” (i.e. “There is nothing in it”).
[The Reader had better provide himself with 4 Red Counters and 5 Grey ones.]