%0 Journal Article %A Gheorghiu, Alexander V. %A Pym, David J. %T Definite Formulae, Negation-as-Failure, and the Base-Extension Semantics of Intuitionistic Propositional Logic %J Bulletin of the Section of Logic %D 2023 %P 239-266 %V 52 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BSL_2023_52_2_a3/ %G en %F BSL_2023_52_2_a3