%0 Journal Article %A S. Mrówka %T On the ideals' extension theorem and its equivalence to the axiom of choice %J Fundamenta Mathematicae %D 1956 %P 46-49 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-43-1-46-49/ %R 10.4064/fm-43-1-46-49 %G en %F 10_4064_fm_43_1_46_49