fact: Fixpoint NumUpTo n acc := match n with | 0 => acc | S n' => NumUpTo n' (n' :: acc) end.
imports: Fiat.Common.Coq__8_4__8_5__Compat Coq.Numbers.Natural.Peano.NPeano Coq.Strings.String Coq.Arith.Lt Coq.Arith.Compare_dec Coq.Lists.List Coq.ZArith.ZArith