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E_1,E_2,E_3,… étant une suite infinie donnée d'ensembles, il est naturel d'envisager les suites descendentes d'ensembles tirées de la suite donnée, c'est-à-dire des suites infinies d'ensembles E_(n_1),E_(n_2),E_(n_3),… telles que E_(n_1) ⊃ E_(n_2) ⊃ E_(n_3),… et n_1 < n_2 < n_3 <… Desiginon par A(E_1,E_2,E_3,…) la somme de tous les produits E_(n_1) E_(n_2) E_(n_3)… , la sommation s'etendant...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.