Mathematics, Logic.- De Morgan (Augustus) Formal logic: or, the calculus of inference, necessary and probable, first edition (later issue), presentation copy from the author and with an Autograph Lett

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First edition · Signed

Mathematics, Logic.- De Morgan (Augustus) Formal logic: or, the calculus of inference, necessary and probable, first edition (later issue), presentation copy from the author and with an Autograph Letter signed from the same, diagrams, 8pp. publisher's catalogue at end dated November, 1853, outermost margins of text block browned, occasional spotting, original blind-stamped cloth, rebacked, preserving original gilt backstrip with remains of paper label at foot, rubbed, [Tomash & Williams D35], 8vo, Taylor and Walton, 1847. *** 'the work in which De Morgan took the first steps to codify logic into an algebraic system' (Tomash & Williams). The A.L.s. discusses a misprint in the text, which is here corrected in pencil.

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