fact: Definition print (x : Inatmul) : option Number.int := match x with | INatmul IOne n => Some (Number.IntDecimal (Decimal.Pos (Nat.to_uint n))) | IOpp (INatmul IOne n) => Some (Number.IntDecimal (Decimal.Neg (Nat.to_uint n))) | _ => None end.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq) mathcomp(choice fintype finfun bigop prime binomial)