(** * Properties of the memory operations *)
(** ** Properties of the initial memory state. *)

(* Specifications: *)
Axiom nextblock_empty: nextblock empty = 1%positive.
Axiom perm_empty: forall b ofs k p, ~perm empty b ofs k p.
Axiom valid_access_empty:
forall chunk b ofs p, ~valid_access empty chunk b ofs p.