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Diffstat (limited to 'test-suite/output/rewrite-2172.v')
| -rw-r--r-- | test-suite/output/rewrite-2172.v | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test-suite/output/rewrite-2172.v b/test-suite/output/rewrite-2172.v new file mode 100644 index 00000000..212b1c12 --- /dev/null +++ b/test-suite/output/rewrite-2172.v @@ -0,0 +1,21 @@ +(* This checks an error message as reported in bug #2172 *) + +Axiom axiom : forall (E F : nat), E = F. +Lemma test : forall (E F : nat), E = F. +Proof. + intros. +(* This used to raise the following non understandable error message: + + Error: Unable to find an instance for the variable x + + The reason this error was that rewrite generated the proof + + "eq_ind ?A ?x ?P ? ?y (axiom ?E ?F)" + + and the equation ?x=?E was solved in the way ?E:=?x leaving ?x + unresolved. A stupid hack for solve this consisted in ordering + meta=meta equations the other way round (with most recent evars + instantiated first - since they are assumed to come first from the + user in rewrite/induction/destruct calls). +*) + Fail rewrite <- axiom. |