fact: Definition mkseqmx_ord m n (f : 'I_m -> 'I_n -> A) : seqmx := let enum_n := ord_enum_eq n in map (fun i => map (f i) enum_n) (ord_enum_eq m).
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq ssralg) mathcomp(path choice fintype tuple finset bigop poly matrix mxpoly) CoqEAL(hrel param refinements trivial_seq)