%0 Journal Article %A Jacek Cichoń %A Michał Morayne %T An abstract version of Sierpiński’s theorem and the algebra generated by A and CA functions %J Fundamenta Mathematicae %D 1993 %P 263-268 %V 142 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-142-3-263-268/ %R 10.4064/fm-142-3-263-268 %G en %F 10_4064_fm_142_3_263_268