proposition: Lemma biglub_conv_pt_setD p x (Y : neset L) : |_| (x <| p |>: Y)%:ne = x <|p|> |_| Y.
proof: Proof. by rewrite biglub_conv_pt_setE -biglubDr. 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