proposition: Lemma bigmax_nnsfunE n t : bigmax_nnsfun n t = \big[maxr/0]_(i < n) (f i t).
proof: Proof. by rewrite /bigmax_nnsfun; elim/big_ind2 : _ => [|x g y h <- <-|]. 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 numfun