(* Title: BDD
Author: Veronika Ortner and Norbert Schirmer, 2004
Maintainer: Norbert Schirmer, norbert.schirmer at web de
License: LPGL
*)
(*
EvalProof.thy
Copyright (C) 2004-2008 Veronika Ortner and Norbert Schirmer
Some rights reserved, TU Muenchen
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
*)
section ‹Proof of Procedure Eval›
theory EvalProof imports ProcedureSpecs begin
lemma (in Eval_impl) Eval_modifies:
shows "∀σ. Γ⊨{σ} PROC Eval (🚫p, 🚫varval, 🚫R)
{t. t may_not_modify_globals σ}"
apply (hoare_rule HoarePartial.ProcRec1)
apply (vcg spec=modifies)
done
lemma (in Eval_impl) Eval_spec:
shows "∀σ t bdt1. Γ⊨
{σ. Dag 🚫p 🚫low 🚫high t ∧ bdt t 🚫var = Some bdt1}
🚫R :== PROC Eval(🚫p, 🚫varval)
{🚫R = eval bdt1 <sigma>varval }"
apply (hoare_rule HoarePartial.ProcRec1)
apply vcg
apply clarsimp
apply safe
apply (case_tac bdt1)
apply simp
apply fastforce
apply fastforce
apply simp
apply (case_tac bdt1)
apply fastforce
apply fastforce
apply fastforce
apply (case_tac bdt1)
apply fastforce
apply fastforce
apply fastforce
apply (case_tac bdt1)
apply fastforce
apply fastforce
apply fastforce
done
end
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland