diff options
Diffstat (limited to 'tactics/setoid_replace.ml')
| -rw-r--r-- | tactics/setoid_replace.ml | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tactics/setoid_replace.ml b/tactics/setoid_replace.ml index 68c0ca3ba..b3b29117b 100644 --- a/tactics/setoid_replace.ml +++ b/tactics/setoid_replace.ml @@ -790,6 +790,10 @@ let new_morphism m signature id hook = let args_ty_quantifiers_rev,args,args_instance,output,output_instance = match signature with None -> + if args_ty = [] then + errorlabstrm "New Morphism" + (str "The term " ++ prterm m ++ str " has type " ++ + prterm typeofm ++ str " that is not a product.") ; ignore (check_is_dependent 0 args_ty output) ; let args = List.map |