diff options
Diffstat (limited to 'test-suite')
-rw-r--r-- | test-suite/bugs/closed/4763.v | 13 | ||||
-rw-r--r-- | test-suite/bugs/closed/HoTT_coq_117.v | 21 |
2 files changed, 33 insertions, 1 deletions
diff --git a/test-suite/bugs/closed/4763.v b/test-suite/bugs/closed/4763.v new file mode 100644 index 000000000..ae8ed0e6e --- /dev/null +++ b/test-suite/bugs/closed/4763.v @@ -0,0 +1,13 @@ +Require Import Coq.Arith.Arith Coq.Classes.Morphisms Coq.Classes.RelationClasses. +Coercion is_true : bool >-> Sortclass. +Global Instance: Transitive leb. +Admitted. + +Goal forall x y z, leb x y -> leb y z -> True. + intros ??? H H'. + lazymatch goal with + | [ H : is_true (?R ?x ?y), H' : is_true (?R ?y ?z) |- _ ] + => pose proof (transitivity H H' : is_true (R x z)) + end. + exact I. +Qed.
\ No newline at end of file diff --git a/test-suite/bugs/closed/HoTT_coq_117.v b/test-suite/bugs/closed/HoTT_coq_117.v index 5fbcfef4e..de60fd0ae 100644 --- a/test-suite/bugs/closed/HoTT_coq_117.v +++ b/test-suite/bugs/closed/HoTT_coq_117.v @@ -16,10 +16,29 @@ Definition path_forall `{Funext} {A : Type} {P : A -> Type} (f g : forall x : A, Admitted. Inductive Empty : Set := . -Instance contr_from_Empty {_ : Funext} (A : Type) : +Fail Instance contr_from_Empty {_ : Funext} (A : Type) : + Contr_internal (Empty -> A) := + BuildContr _ + (Empty_rect (fun _ => A)) + (fun f => path_forall _ f (fun x => Empty_rect _ x)). + +Fail Instance contr_from_Empty {F : Funext} (A : Type) : Contr_internal (Empty -> A) := BuildContr _ (Empty_rect (fun _ => A)) (fun f => path_forall _ f (fun x => Empty_rect _ x)). + +(** This could be disallowed, this uses the Funext argument *) +Instance contr_from_Empty {_ : Funext} (A : Type) : + Contr_internal (Empty -> A) := + BuildContr _ + (Empty_rect (fun _ => A)) + (fun f => path_forall _ f (fun x => Empty_rect (fun _ => _ x = f x) x)). + +Instance contr_from_Empty' {_ : Funext} (A : Type) : + Contr_internal (Empty -> A) := + BuildContr _ + (Empty_rect (fun _ => A)) + (fun f => path_forall _ f (fun x => Empty_rect (fun _ => _ x = f x) x)). (* Toplevel input, characters 15-220: Anomaly: unknown meta ?190. Please report. *) |