00785nam0-22002651i-450-990001225130403321000122513FED01000122513(Aleph)000122513FED0100012251320000920d1969----km-y0itay50------baeng<<The >>Collected Papers of Gerhard Gentzenby Gentzen G.Edited by M.E. Szabo. -Amsterdam [etc.]North-Holland1969.Studies in logic and the foundations of mathematicsGentzen,Gerhard50847ITUNINARICAUNIMARCBK990001225130403321112-A-512769MA1MA1Collected Papers of Gerhard Gentzen340144UNINAING01