%0 Journal Article %A P. Johnstone %T Tychonoff's theorem without the axiom of choice %J Fundamenta Mathematicae %D 1981 %P 21-35 %V 113 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-113-1-21-35/ %R 10.4064/fm-113-1-21-35 %G en %F 10_4064_fm_113_1_21_35