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+Require Import Crypto.Specific.GF25519Reflective.Common.
+
+Definition rsubZ_sig : rexpr_binop_sig sub. Proof. reify_sig. Defined.
+Definition rsubW := Eval vm_compute in rword_of_Z rsubZ_sig.
+Lemma rsubW_correct_and_bounded_gen : correct_and_bounded_genT rsubW rsubZ_sig.
+Proof. rexpr_correct. Qed.
+Definition rsub_output_bounds := Eval vm_compute in compute_bounds rsubW ExprBinOp_bounds.
+
+Local Open Scope string_scope.
+Compute ("Sub", compute_bounds_for_display rsubW ExprBinOp_bounds).
+(*Compute ("Sub overflows? ", sanity_check rsubW ExprBinOp_bounds).*)