diff options
Diffstat (limited to 'pretyping/evarsolve.ml')
| -rw-r--r-- | pretyping/evarsolve.ml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pretyping/evarsolve.ml b/pretyping/evarsolve.ml index a4fc330c6..fc5fc0d2c 100644 --- a/pretyping/evarsolve.ml +++ b/pretyping/evarsolve.ml @@ -273,7 +273,7 @@ let free_vars_and_rels_up_alias_expansion aliases c = | Rel n -> if n >= depth+1 then acc1 := Int.Set.add (n-depth) !acc1 | _ -> frec (aliases,depth) c end | Const _ | Ind _ | Construct _ -> - acc2 := List.fold_right Id.Set.add (vars_of_global (Global.env()) c) !acc2 + acc2 := Id.Set.union (vars_of_global (Global.env()) c) !acc2 | _ -> iter_constr_with_full_binders (fun d (aliases,depth) -> (extend_alias d aliases,depth+1)) |