blob: c53d4cabc7f1436b6c489a9e349cfa4eae3e9c9c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
Require Coq.Classes.RelationClasses.
Class PreOrder (A : Type) (r : A -> A -> Type) : Type :=
{ refl : forall x, r x x }.
(* FAILURE 1 *)
#[universes(polymorphic)]
Section foo.
Polymorphic Universes A.
Polymorphic Context {A : Type@{A}} {rA : A -> A -> Prop} {PO : PreOrder A rA}.
Fail Monomorphic Definition foo := PO.
End foo.
Module ILogic.
Set Universe Polymorphism.
(* Logical connectives *)
Class ILogic@{L} (A : Type@{L}) : Type := mkILogic
{
lentails: A -> A -> Prop;
lentailsPre:> RelationClasses.PreOrder lentails
}.
End ILogic.
Set Printing Universes.
(* There is still a problem if the class is universe polymorphic *)
#[universes(polymorphic)]
Section Embed_ILogic_Pre.
Polymorphic Universes A T.
Fail Monomorphic Context {A : Type@{A}} {ILA: ILogic.ILogic@{A} A}.
End Embed_ILogic_Pre.
|
