proposition: Lemma wcountones_wzero {sz} : wcountones (wzero sz) = 0%nat.
proof: Proof. rewrite <- wzero'_def. induction sz; simpl; congruence. Qed.
imports: Fiat.Common.Coq__8_4__8_5__Compat List Bedrock.Word Coq.ZArith.ZArith Coq.micromega.Psatz NArith NArithRing ZArith ZArithRing Program Coq.micromega.Psatz