Primitive projections should be valid targets of coercions (polyproj)

HoTT / coq

Coq is a formal proof management system. It provides a formal language to write mathematical definitions, executable algorithms and theorems together with an environment for semi-interactive development of machine-checked proofs.

http://coq.inria.fr/

GNU Lesser General Public License v2.1

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Primitive projections should be valid targets of coercions (polyproj) #81

Closed JasonGross closed 10 years ago

JasonGross commented 10 years ago

Set Primitive Projections.
Set Implicit Arguments.
Set Universe Polymorphism.

Record category :=
  { ob :> Type;
    hom : ob -> ob -> Type
  }.

Record foo := { C : category; x : ob C; y :> hom x x }.
(* Toplevel input, characters 20-75:
Error: Cannot find the target class. *)

mattam82 commented 10 years ago

Fixed in trunk