TY - JOUR Y1 - 2007/// AV - none TI - Sur l'interversion de l'ordre entre deux opérations sur les tribus JF - Comptes rendus mathématique IS - 6 UR - http://dx.doi.org/10.1016/j.crma.2007.07.020 SN - 1631-073X PB - Elsevier Masson A1 - Crimaldi, Irene A1 - Letta, Giorgio A1 - Pratelli, Luca SP - 341 N2 - We characterize the measurable spaces (?,A) such that, for each sub-?-field G of A and each decreasing filtered family (F_t) of sub-?-fields of A, with F_t ? F_?, we have F_t ? G ? F_? ? G. It follows a characterization of the probability spaces (?, A, P) such that, for each sub-?-field G of A and each decreasing sequence (F_n) of sub-?-fields of A, with F_n ? F_?, we have ?_n (F_n ? G) ? F_? ? G (mod P). ID - eprints984 EP - 344 VL - 345 ER -