Principia Mathematica to *56
Cambridge: [Cambridge] University Press, 1962. Paperback. 8 by 5 1/4 inches; 203 by 136 mm. xlvi, 410 pages. Softcover, in good condition. Somewhat flawed in appearance, but still quite a useable copy. Spine creased, though still strong; one-inch tear to rear cover at bottom of spine; light creases to front..... More