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LOGIC (MS 339-1009)
The topics of these fragments range widely from CSP's comment on his habit of thinking in the syntax of existential graphs to discussions of probability, orders of induction (crude, quantitative, qualitative), the divisions of deduction as corollarial and theorematic; introduction of the term "adduction," with a note that the adductions of Socrates were of a crude order. Also notes on the history of logic (Aristotle, Bacon, English logicians) and reflections on the meaning of "pragmatism," and its connection with signs and habits. In regard to the origins of the word "pragmatism," CSP writes: "It was about 1870 - I don't think it could have been as late as 1872 - that I invented the word...."
Adduction, Aristotle, Autobiographical references, Bacon Francis, Deduction, corollarial Deduction, etymology of probable definitory (see also Probability), theorematic definitory, English logicians, Graphs existential, Habit (see also Belief; Thirdness), Induction, crude Induction, qualitative Induction, quantitative Induction, Logic (modal see Modality), history of Logic, uniformity of Nature, Pragmatism and Pragmaticism, Probability and Chance, inverse Probability and Chance, Sign(s), Socrates, statistical Syllogism
LOGIC / PRACTICAL LOGIC, NOTES, FRAGMENTS
Seven folded sheets (28 pp.) added to L 231; two folded sheets (8 pp.) added to L 256.