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In this paper, we generalize the basic notions and results of Dempster-Shafer theory from predicates to formal concepts. Results include the representation of conceptual belief functions as inner measures of suitable probability functions, and a Dempster-Shafer rule of combination on belief functions on formal concepts.doi:10.1016/j.ijar.2020.05.004 fatcat:xsrxbeuogzaprnrepdbssb73c4