%0 Journal Article %A Resl, Michal %A Sochor, AntonĂ­n %T Provability in the alternative set theory %J Commentationes Mathematicae Universitatis Carolinae %D 1981 %P 655-660 %V 22 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1981__22_4_a1/ %G en %F CMUC_1981__22_4_a1