proposition: Lemma biglub_conv_pt_setE p x (Y : neset L) : |_| (x <| p |>: Y)%:ne = |_| ((conv p x) @` Y)%:ne.
proof: Proof. by congr (|_| _%:ne); apply/neset_ext => /=; rewrite conv_pt_setE. Qed.
imports: HB(structures) Reals mathcomp(all_ssreflect ssralg ssrnum) mathcomp(mathcomp_extra boolp classical_sets Rstruct reals) mathcomp(finmap) Reals_ext realType_ext classical_sets_ext ssrR fdist fsdist convex