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| author | Jasper Hugunin | 2020-11-27 09:26:20 -0800 |
|---|---|---|
| committer | Jasper Hugunin | 2020-11-27 09:26:51 -0800 |
| commit | a1daae8800194166662c87e11a974a6ae3d24a4d (patch) | |
| tree | 2c8cacdd9f38e089bcd32c2995e4107b6583a34d | |
| parent | 7f3c46acc937eb9257c29b5881e5a8b17b28cd48 (diff) | |
A small fix for freshness in the `change` tactic
| -rw-r--r-- | tactics/eqdecide.ml | 4 | ||||
| -rw-r--r-- | test-suite/bugs/closed/bug_13493.v | 7 |
2 files changed, 9 insertions, 2 deletions
diff --git a/tactics/eqdecide.ml b/tactics/eqdecide.ml index d4cc193eb3..9b3f9053cd 100644 --- a/tactics/eqdecide.ml +++ b/tactics/eqdecide.ml @@ -123,8 +123,8 @@ let idy = Id.of_string "y" let mkGenDecideEqGoal rectype ops g = let hypnames = pf_ids_set_of_hyps g in - let xname = next_ident_away idx hypnames - and yname = next_ident_away idy hypnames in + let xname = next_ident_away idx hypnames in + let yname = next_ident_away idy (Id.Set.add xname hypnames) in (mkNamedProd (make_annot xname Sorts.Relevant) rectype (mkNamedProd (make_annot yname Sorts.Relevant) rectype (mkDecideEqGoal true ops diff --git a/test-suite/bugs/closed/bug_13493.v b/test-suite/bugs/closed/bug_13493.v new file mode 100644 index 0000000000..779df8e7f2 --- /dev/null +++ b/test-suite/bugs/closed/bug_13493.v @@ -0,0 +1,7 @@ +Set Mangle Names. + +Goal forall (m n:nat), True. + intros m n. compare m n. + - constructor. + - constructor. +Qed. |