... domain. Domains for thismodel are either discrete scalars or discrete numbers drawn from either a finite or infinite set. The14HO THUAN, TRAN THIEN THANHequivalence relation over the domain ... Asimilarity relation is a mappings : DxD + 10,1] such that forx,y,zED,s(x, x)= 1 (reflexivity),s(x,y)=s(y, x)(symmetry),s(x, z)2maxyED{minls(x,y),s(y, z)]}(max-min transitivity).Deftnition ... ordinary equivalence among domain valuesby measures of nearness such assimilarity relationships, proximity relationship,anddistinguishabilityJunction(see [8)). The second major effort has involved...