Mathematics.- Whitehead (Alfred North) and Bertrand Russell. Principia Mathematica, 3 vol., first editions, half titles, vol. 1 tiny marginal tears to half-title and p.ix, occasional light finger soiling, mainly to preliminaries, vol. 3 with small ink library stamp to title and a few ff. (Liverpool Library), overall generally clean, original blue cloth, spines gilt, vols II-3 with gilt library numbering to spines, central library blind-stamps to covers vol. 2-3, vol. 2 hinges repaired, some retouching and minute repairs to corner tips and spine, large 8vo, Cambridge, Cambridge University Press, 1910-13.

⁂ First edition of all three volumes of this monumental work, exceptionally rare as a complete set. A landmark of modern thought, Principia Mathematica is considered the greatest single contribution to logic to appear since Aristotle and second only to Newton in terms of influence within its primary spheres of discussion, chiefly mathematical logic, set theory, the foundations of mathematics, linguistic analysis and analytical philosophy.