%0 Journal Article %A Neil Gray %T On the conjecture $2^X ≈ I^ω$ %J Fundamenta Mathematicae %D 1970 %P 45-52 %V 66 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-66-1-45-52/ %R 10.4064/fm-66-1-45-52 %G en %F 10_4064_fm_66_1_45_52