lh-l4v/lib/sep_algebra/Sep_Provers_Example.thy

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(*
* Copyright 2014, NICTA
*
* This software may be distributed and modified according to the terms of
* the BSD 2-Clause license. Note that NO WARRANTY is provided.
* See "LICENSE_BSD2.txt" for details.
*
* @TAG(NICTA_BSD)
*)
theory Sep_Provers_Example
imports Sep_Provers
begin
axiomatization
Moo :: "'a :: stronger_sep_algebra => bool" and
Bar :: "'a :: stronger_sep_algebra => bool"
where Moo_Bar : "Moo s \<Longrightarrow> Bar s"
(* sep_rule is 'rule' with rotations of the conjuncts in the conclusions *)
lemma "(A \<and>* B \<and>* C \<and>* Bar) s"
apply (sep_rule Moo_Bar)
oops
(* sep_drule is 'drule' with rotations of the conjuncts in the assumptions *)
lemma "(A \<and>* B \<and>* C \<and>* Moo) s \<Longrightarrow> R"
apply (sep_drule Moo_Bar)
oops
(* sep_erule is 'erule' with rotations of the conjuncts in either the assumptions,
the conclusions, or both. These are sep_erule, sep_erule_concl, and sep_erule_full respectively
*)
lemma "(A \<and>* B \<and>* C \<and>* Moo) s \<Longrightarrow> (A \<and>* B \<and>* C \<and>* Bar) s"
(* In this case we need to rotate both, so we use sep_erule_full *)
apply (sep_erule_full Moo_Bar)
apply (assumption)
done
lemma Moo_Bar_R: "(Moo \<and>* R) s \<Longrightarrow> (Bar \<and>* R) s" sorry
(* When we have theorems with the frame explicitly mentioned, we have to invoke our tactics with
(direct) option *)
lemma "(A \<and>* B \<and>* C \<and>* Moo) s \<Longrightarrow> (A \<and>* B \<and>* C \<and>* Bar) s"
apply (sep_erule_full (direct) Moo_Bar_R)
done
end