Require Export VST.concurrency.paco.src.paconotation.
(** * Tactic support for [paco] library  This file defines tactics for converting the conclusion to the right form so that the accumulation lemmas can be usefully applied. These tactics are used in both internal and external approaches.  Our main tactic, [pcofix], is defined at the end of the file and works for predicates of arity up to 14. *)
(** ** Internal tactics *)
Inductive _paco_mark := _paco_mark_cons.
Inductive _paco_foo := _paco_foo_cons.
Definition _paco_id {A} (a : A) : A := a.

(* Specifications: *)
Lemma paco_eq_JMeq: forall A (a b: A), a = b -> _paco_id (JMeq a b).