diff options
Diffstat (limited to 'proofs/goal.ml')
| -rw-r--r-- | proofs/goal.ml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/proofs/goal.ml b/proofs/goal.ml index 48cce3fa7..7901ec0a5 100644 --- a/proofs/goal.ml +++ b/proofs/goal.ml @@ -429,8 +429,10 @@ let rename_hyp_sign id1 id2 sign = let rename_hyp id1 id2 env rdefs gl info = let hyps = hyps env rdefs gl info in if not (Names.Id.equal id1 id2) && - List.mem id2 (Termops.ids_of_named_context (Environ.named_context_of_val hyps)) then - Errors.error ((Names.Id.to_string id2)^" is already used."); + Names.Id.List.mem id2 + (Termops.ids_of_named_context (Environ.named_context_of_val hyps)) + then + Errors.error ((Names.Id.to_string id2)^" is already used."); let new_hyps = rename_hyp_sign id1 id2 hyps in let new_env = Environ.reset_with_named_context new_hyps env in let old_concl = concl env rdefs gl info in |