fact: Definition prop_near2 {X X'} {fX : filteredType X} {fX' : filteredType X'} (x : fX) (x' : fX') := fun P of ph {all2 P} => filter_prod (nbhs x) (nbhs x') (fun x => P x.1 x.2).
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap generic_quotient) mathcomp(boolp classical_sets functions) mathcomp(cardinality mathcomp_extra fsbigop) reals signed