%0 Journal Article %A Eleftherios Tachtsis %T The Boolean prime ideal theorem does not imply the extension of almost disjoint families to MAD families %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2020 %P 105-115 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba201014-22-1/ %R 10.4064/ba201014-22-1 %G en %F 10_4064_ba201014_22_1