proposition: Lemma eq_Lnorm p f g : f =1 g -> 'N_p[f] = 'N_p[g].
proof: Proof. by move=> fg; congr Lnorm; exact/funext. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum ssrint interval finmap) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality fsbigop ) signed reals ereal topology normedtype sequences real_interval esum measure lebesgue_measure lebesgue_integral numfun exp convex itv