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Thomas solly (1816–1875):an unknown pioneer of the mathematization of logic in england, 1839

History and Philosophy of Logic 14 (2):133-169 (1993)

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Making sense of solly’s syllogistic symbolism.Dantel D. Merrill - 1996 - History and Philosophy of Logic 17 (1-2):199-207.details This paper is an attempt to understand the method by which Thomas Solly (1816?1875), in his Syllabus of Logic (1839), provided a mathematical formulation of the traditional syllogism. The symbolism, in which analogues of multiplication, addition and subtraction are applied to term variables, is very puzzling at first. This paper provides a clear interpretation for this symbolism and explains why it works. It also addresses other notable features of the symbolism. The paper concludes by comparing the results which Solly obtained (...) Download Export citation Bookmark
The Development of Logic as Reflected in the Fate of the Syllogism 1600–1900.James Van Evra - 2000 - History and Philosophy of Logic 21 (2):115-134.details One way to determine the quality and pace of change in a science as it undergoes a major transition is to follow some feature of it which remains relatively stable throughout the process. Following the chosen item as it goes through reinterpretation permits conclusions to be drawn about the nature and scope of the broader change in question. In what follows, this device is applied to the change which took place in logic in the mid-nineteenth century. The feature chosen as (...) Download Export citation Bookmark 2 citations

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