edited by B. F. McGuinness, T. Nyberg, G. H. von Wright; with a translation [from the German] by D. F. Pears, B. F. McGuinness, an historical introduction by G. H. von Wright and a facsimile of the author's manuscript
Title Proper by Another Author
1889-1951
Title Proper
Prototractatus: an early version of Tractatus logico-philosophicus