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JEVONS, William Stanley.

The Substitution of Similars, The True Principle of Reasoning, Derived from a Modification of Aristotle's Dictum.

London: Macmillan and Co, 1869 Stock Code: 122828
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First edition of the economist, logician, and philosopher's most popular and accessible work. "At the end of 1866 Jevons had begun 'thinking about logic again seriously' and considered grafting some developments on to the modified version of Boole's system that he had published in 1863. In the next two months the idea that 'the great and universal principle of all reasoning' was the substitution of similars became central to his thinking. With this in mind he decided to 'produce a work which will not only embody a new and luminous system but will be readable and read by many' (Papers, 1.209-10)... in 1869 he published The Substitution of Similars, a short work presenting the essence of his system of logic as he now saw it 'to the judgement of those interested in logical science'" (ODNB).

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Octavo. Original blue cloth, spine lettered in gilt, boards ruled in blind, sprinkled edges.


Diagram frontispiece (included in pagination) of the logical abacus; 32-page Macmillan catalogue dated February 1875 at rear.


Spine worn at extremities, corners lightly rubbed, inner hinges cracked but firm. Ownership labels of the Library of the Meadville Theological School dated 1881 to front pastedown, library stamps and perforated stamp to title page and pages 43-44, shelf mark to gutter of leaf of preface and to spine, lending ticket and return date sheet to rear endpapers; a sound copy.


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