On the Theory of Deduction, Part I. Derivation and Its Generalizations (1948)
David A. Binder, Thomas Piecha, Peter Schroeder‐Heister · Trends in logic · 2022
This article is a corrected reprint of K. R. Popper (1948a). On the Theory of Deduction, Part I. Derivation and its Generalizations. In: Koninklijke Nederlandse Akademie vanWetenschappen, Proceedings of the Section of Sciences 51, pp. 173–183.