diff options
author | 2015-01-25 14:43:16 +0100 | |
---|---|---|
committer | 2015-01-25 14:43:16 +0100 | |
commit | f219abfed720305c13875c3c63f9240cf63f78bc (patch) | |
tree | 69d2c026916128fdb50b8d1c0dbf1be451340d30 /test-suite/bugs/closed/1963.v | |
parent | 476d60ef0fe0ac015c1e902204cdd7029e10ef0f (diff) | |
parent | cec4741afacd2e80894232850eaf9f9c0e45d6d7 (diff) |
Merge tag 'upstream/8.5_beta1+dfsg'
Upstream version 8.5~beta1+dfsg
Diffstat (limited to 'test-suite/bugs/closed/1963.v')
-rw-r--r-- | test-suite/bugs/closed/1963.v | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/1963.v b/test-suite/bugs/closed/1963.v new file mode 100644 index 00000000..11e2ee44 --- /dev/null +++ b/test-suite/bugs/closed/1963.v @@ -0,0 +1,19 @@ +(* Check that "dependent inversion" behaves correctly w.r.t to universes *) + +Require Import Eqdep. + +Set Implicit Arguments. + +Inductive illist(A:Type) : nat -> Type := + illistn : illist A 0 +| illistc : forall n:nat, A -> illist A n -> illist A (S n). + +Inductive isig (A:Type)(P:A -> Type) : Type := + iexists : forall x : A, P x -> isig P. + +Lemma inv : forall (A:Type)(n n':nat)(ts':illist A n'), n' = S n -> + isig (fun t => isig (fun ts => + eq_dep nat (fun n => illist A n) n' ts' (S n) (illistc t ts))). +Proof. +intros. +dependent inversion ts'. |