fact: Definition mnmd_seq {n} (i : nat) (d : binnat.N) : seqmultinom := nseq i 0%num ++ [:: d] ++ nseq (n - i - 1) 0%num.
imports: ZArith NArith FMaps FMapAVL mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq) mathcomp(choice finfun tuple fintype ssralg bigop) CoqEAL(hrel) CoqEAL(refinements) CoqEAL(param binord binnat) CoqEAL(seqmx ) CoqEAL(ssrcomplements) mathcomp.multinomials(mpoly freeg)