%0 Journal Article %A SzymaƄski, Andrzej %T Some Baire category type theorems for $U(\omega_1)$ %J Commentationes Mathematicae Universitatis Carolinae %D 1979 %P 519-528 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1979__20_3_a9/ %G en %F CMUC_1979__20_3_a9