From a4c7f8bd98be2a200489325ff7c5061cf80ab4f3 Mon Sep 17 00:00:00 2001 From: Enrico Tassi Date: Tue, 27 Dec 2016 16:53:30 +0100 Subject: Imported Upstream version 8.6 --- test-suite/bugs/closed/4529.v | 45 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 test-suite/bugs/closed/4529.v (limited to 'test-suite/bugs/closed/4529.v') diff --git a/test-suite/bugs/closed/4529.v b/test-suite/bugs/closed/4529.v new file mode 100644 index 00000000..8b3c24fe --- /dev/null +++ b/test-suite/bugs/closed/4529.v @@ -0,0 +1,45 @@ +(* File reduced by coq-bug-finder from original input, then from 1334 lines to 1518 lines, then from 849 lines to 59 lines *) +(* coqc version 8.5 (January 2016) compiled on Jan 22 2016 18:20:47 with OCaml 4.02.3 + coqtop version r-schnelltop:/home/r/src/coq/coq,(HEAD detached at V8.5) (5e23fb90b39dfa014ae5c4fb46eb713cca09dbff) *) +Require Coq.Setoids.Setoid. +Import Coq.Setoids.Setoid. + +Class Equiv A := equiv: relation A. +Infix "≡" := equiv (at level 70, no associativity). +Notation "(≡)" := equiv (only parsing). + +(* If I remove this line, everything compiles. *) +Set Primitive Projections. + +Class Dist A := dist : nat -> relation A. +Notation "x ={ n }= y" := (dist n x y) + (at level 70, n at next level, format "x ={ n }= y"). + +Record CofeMixin A `{Equiv A, Dist A} := { + mixin_equiv_dist x y : x ≡ y <-> forall n, x ={n}= y; + mixin_dist_equivalence n : Equivalence (dist n); +}. + +Structure cofeT := CofeT { + cofe_car :> Type; + cofe_equiv : Equiv cofe_car; + cofe_dist : Dist cofe_car; + cofe_mixin : CofeMixin cofe_car +}. +Existing Instances cofe_equiv cofe_dist. +Arguments cofe_car : simpl never. + +Section cofe_mixin. + Context {A : cofeT}. + Implicit Types x y : A. + Lemma equiv_dist x y : x ≡ y <-> forall n, x ={n}= y. +Admitted. +End cofe_mixin. + Context {A : cofeT}. + Global Instance cofe_equivalence : Equivalence ((≡) : relation A). + Proof. + split. + * + intros x. +apply equiv_dist. + -- cgit v1.2.3