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L'auteur a démontré avec monsieur Mazurkiewicz que l'ensemble de toues les valeurs qu'une fonction continue d'une variable réelle prend une infinité non dénombrable de fois est une projection d'un ensemble plan mesurable B. Le but de cette note est de démontrer cet théorème directement, sans recours aux ensembles (A).
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.