%0 Journal Article %A Franklin D. Tall %T An irrational problem %J Fundamenta Mathematicae %D 2002 %P 259-269 %V 175 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm175-3-3/ %R 10.4064/fm175-3-3 %G en %F 10_4064_fm175_3_3