摘要: Some of the forerunners quantum theory regarded basic entities such theories as 'non-individuals'. One problems is to treat collections 'things', for they do not obey axioms standard set like Zermelo-Fraenkel. In this paper, objects which concept identity (Leibinizian identity) does apply are termed 'quasi-sets'. The motivation a theory, linked what we call 'the Manin problem', presented, so its specific axioms. At end, it shown how statistics can be obtained within quasi-set thbeory.