Mathematics.- Computing.- Boole (George) An Investigation of the Laws of Thought on which are founded the Mathematical Theories of Logic and Probabilities, first edition, third issue, errata f. following contents, chocolate brown endpapers, ink stamp of Intermediate Education Board for Ireland to upper blank corner of title and following 2 ff., some spotting, lightly browned, endpapers foxed, original cloth, spine gilt (including name of author and Macmillan & Co. at foot), rubbed, [Norman 266; Origins of Cyberspace 224], a good copy, 8vo, London [i.e. Dublin], Macmillan and Co., 1854.

⁂ 'pure mathematics was discovered by George Boole in [this] work' (Bertrand Russell). His 'work led to...computer technology via the master's thesis of C.E. Shannon (1937), who recognized that the true/false values in Boole's two valued algebra were analogous to the open and closed states of electric circuits. This invention of the binary digit or "bit" made possible the development of the digital computer.' (Norman). Issue with 'Macmillan and Co.' alone on title, errata f. bound after contents and L2 and Q8 cancels. There is no 'Note' f., or publisher's catalogue.