%0 Journal Article %A Havránek, Tomáš %T A generalization of the propositional calculus for purposes of the theory of logical nets with probabilistic elements %J Kybernetika %D 1974 %P -43 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1974__10_1_a1/ %G en %F KYB_1974__10_1_a1