Einführung in die symbolische Logik.; Mit besonderer Berücksichtigung ihrer Anwendungen.
Wien: Springer-Verlag, 1954. First edition. Very good. Gray cloth with front cover and spine stamped in navy. Octavo. x, 209, [1], [2, ads] pp.
Wien: Springer-Verlag, 1954. First edition. Very good. Gray cloth with front cover and spine stamped in navy. Octavo. x, 209, [1], [2, ads] pp.
Paris: Hermann & Cie... 1935. First edition. Very good condition. Wrappers. Octavo.
New York: Harcourt, Brace, 1937. First edition in English. Former owner's ink signature, some light fraying at top and bottom of spine, edges foxed. Still, a very good, bright copy. Green cloth with gilt spine. Octavo. xvi, 352, [8 ads] pp.
Paris: Hermann et Cie. 1933. Very good. Original brown printed wrappers. Uncut and unopened. Octavo. 36 pp.