%0 Journal Article %A Rayburn, Marlon C. %T On the Lattice of σ-Algebras %J Canadian journal of mathematics %D 1969 %P 755-761 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-086-9/ %R 10.4153/CJM-1969-086-9 %F 10_4153_CJM_1969_086_9