(*
Title: Psi-calculi
Author/Maintainer: Jesper Bengtson (jebe@itu.dk), 2012
*)
theory Sim_Pres
imports Simulation
begin
context env begin
lemma inputPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Q :: "('a, 'b, 'c) psi"
and M :: 'a
and xvec :: "name list"
and N :: 'a
assumes PRelQ: "∧Tvec. length xvec = length Tvec ==> (Ψ, P[xvec::=Tvec], Q[xvec::=Tvec]) ∈ Rel"
shows "Ψ ⊳ M(λ*xvec N).P ↝[Rel] M(λ*xvec N).Q"
proof(auto simp add: simulation_def residual.inject psi.inject)
fix α Q'
assume "Ψ ⊳ M(λ*xvec N).Q ⟼α ≺ Q'"
thus "∃P'. Ψ ⊳ M(λ*xvec N).P ⟼α ≺ P' ∧ (Ψ, P', Q') ∈ Rel"
by(induct rule: inputCases) (auto intro: Input PRelQ)
qed
lemma outputPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Q :: "('a, 'b, 'c) psi"
and M :: 'a
and N :: 'a
assumes PRelQ: "(Ψ, P, Q) ∈ Rel"
shows "Ψ ⊳ M⟨N⟩.P ↝[Rel] M⟨N⟩.Q"
proof(auto simp add: simulation_def residual.inject psi.inject)
fix α Q'
assume "Ψ ⊳ M⟨N⟩.Q ⟼α ≺ Q'"
thus "∃P'. Ψ ⊳ M⟨N⟩.P ⟼α ≺ P' ∧ (Ψ, P', Q') ∈ Rel"
by(induct rule: outputCases) (auto intro: Output PRelQ)
qed
lemma casePres:
fixes Ψ :: 'b
and CsP :: "('c × ('a, 'b, 'c) psi) list"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and CsQ :: "('c × ('a, 'b, 'c) psi) list"
and M :: 'a
and N :: 'a
assumes PRelQ: "∧φ Q. (φ, Q) mem CsQ ==> ∃P. (φ, P) mem CsP ∧ guarded P ∧ (Ψ, P, Q) ∈ Rel"
and Sim: "∧Ψ' R S. (Ψ', R, S) ∈ Rel ==> Ψ' ⊳ R ↝[Rel] S"
and "Rel ⊆ Rel'"
shows "Ψ ⊳ Cases CsP ↝[Rel'] Cases CsQ"
proof(auto simp add: simulation_def residual.inject psi.inject)
fix α Q'
assume "Ψ ⊳ Cases CsQ ⟼α ≺ Q'" and "bn α ♯* CsP" and "bn α ♯* Ψ"
thus "∃P'. Ψ ⊳ Cases CsP ⟼α ≺ P' ∧ (Ψ, P', Q') ∈ Rel'"
proof(induct rule: caseCases)
case(cCase φ Q)
from ‹(φ, Q) mem CsQ› obtain P where "(φ, P) mem CsP" and "guarded P" and "(Ψ, P, Q) ∈ Rel"
by(metis PRelQ)
from ‹(Ψ, P, Q) ∈ Rel› have "Ψ ⊳ P ↝[Rel] Q" by(rule Sim)
moreover from ‹bn α ♯* CsP› ‹(φ, P) mem CsP› have "bn α ♯* P" by(auto dest: memFreshChain)
moreover note ‹Ψ ⊳ Q ⟼α ≺ Q'› ‹bn α ♯* Ψ›
ultimately obtain P' where PTrans: "Ψ ⊳ P ⟼α ≺ P'" and P'RelQ': "(Ψ, P', Q') ∈ Rel"
by(blast dest: simE)
from PTrans ‹(φ, P) mem CsP› ‹Ψ ⊨ φ› ‹guarded P› have "Ψ ⊳ Cases CsP ⟼α ≺ P'"
by(rule Case)
moreover from P'RelQ' ‹Rel ⊆ Rel'› have "(Ψ, P', Q') ∈ Rel'" by blast
ultimately show ?case by blast
qed
qed
lemma resPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Q :: "('a, 'b, 'c) psi"
and x :: name
and Rel' :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
assumes PSimQ: "Ψ ⊳ P ↝[Rel] Q"
and "eqvt Rel'"
and "x ♯ Ψ"
and "Rel ⊆ Rel'"
and C1: "∧Ψ' R S y. [(Ψ', R, S) ∈ Rel; y ♯ Ψ'] ==> (Ψ', (νy)R, (νy)S) ∈ Rel'"
shows "Ψ ⊳ (νx)P ↝[Rel'] (νx)Q"
proof -
note ‹eqvt Rel'› ‹x ♯ Ψ›
moreover have "x ♯ (νx)P" and "x ♯ (νx)Q" by(simp add: abs_fresh)+
ultimately show ?thesis
proof(induct rule: simIFresh[where C="()"])
case(cSim α Q')
from ‹bn α ♯* (νx)P› ‹bn α ♯* (νx)Q› ‹x ♯ α› have "bn α ♯* P" and "bn α ♯* Q" by simp+
from ‹Ψ ⊳ (νx)Q ⟼α ≺ Q'› ‹x ♯ Ψ› ‹x ♯ α› ‹x ♯ Q'› ‹bn α ♯* Ψ› ‹bn α ♯* Q› ‹bn α ♯* subject α›
‹bn α ♯* Ψ› ‹bn α ♯* P› ‹x ♯ α›
show ?case
proof(induct rule: resCases)
case(cOpen M xvec1 xvec2 y N Q')
from ‹bn (M(ν*(xvec1@y#xvec2))⟨N⟩) ♯* Ψ› have "xvec1 ♯* Ψ" and "y ♯ Ψ" and "xvec2 ♯* Ψ" by simp+
from ‹bn (M(ν*(xvec1@y#xvec2))⟨N⟩) ♯* P› have "xvec1 ♯* P" and "y ♯ P" and "xvec2 ♯* P" by simp+
from ‹x ♯ (M(ν*(xvec1@y#xvec2))⟨N⟩)› have "x ♯ xvec1" and "x ≠ y" and "x ♯ xvec2" and "x ♯ M" by simp+
from PSimQ ‹Ψ ⊳ Q ⟼M(ν*(xvec1@xvec2))⟨([(x, y)] ∙ N)⟩ ≺ ([(x, y)] ∙ Q')›
‹xvec1 ♯* Ψ› ‹xvec2 ♯* Ψ› ‹xvec1 ♯* P› ‹xvec2 ♯* P›
obtain P' where PTrans: "Ψ ⊳ P ⟼M(ν*(xvec1@xvec2))⟨([(x, y)] ∙ N)⟩ ≺ P'" and P'RelQ': "(Ψ, P', ([(x, y)] ∙ Q')) ∈ Rel"
by(force dest: simE)
from ‹y ∈ supp N› ‹x ≠ y› have "x ∈ supp([(x, y)] ∙ N)"
by(drule_tac pt_set_bij2[OF pt_name_inst, OF at_name_inst, where pi="[(x, y)]"]) (simp add: eqvts calc_atm)
with PTrans ‹x ♯ Ψ› ‹x ♯ M› ‹x ♯ xvec1› ‹x ♯ xvec2›
have "Ψ ⊳ (νx)P ⟼M(ν*(xvec1@x#xvec2))⟨([(x, y)] ∙ N)⟩ ≺ P'"
by(rule_tac Open)
hence "([(x, y)] ∙ Ψ) ⊳ ([(x, y)] ∙ (νx)P) ⟼([(x, y)] ∙ (M(ν*(xvec1@x#xvec2))⟨([(x, y)] ∙ N)⟩ ≺ P'))"
by(rule eqvts)
with ‹x ♯ Ψ› ‹y ♯ Ψ› ‹y ♯ P› ‹x ♯ M› ‹y ♯ M› ‹x ♯ xvec1› ‹y ♯ xvec1› ‹x ♯ xvec2› ‹y ♯ xvec2› ‹x ≠ y›
have "Ψ ⊳ (νx)P ⟼M(ν*(xvec1@y#xvec2))⟨N⟩ ≺ ([(x, y)] ∙ P')" by(simp add: eqvts calc_atm alphaRes)
moreover from P'RelQ' ‹Rel ⊆ Rel'› ‹eqvt Rel'› have "([(y, x)] ∙ Ψ, [(y, x)] ∙ P', [(y, x)] ∙ [(x, y)] ∙ Q') ∈ Rel'"
by(force simp add: eqvt_def)
with ‹x ♯ Ψ› ‹y ♯ Ψ› have "(Ψ, [(x, y)] ∙ P', Q') ∈ Rel'" by(simp add: name_swap)
ultimately show ?case by blast
next
case(cRes Q')
from PSimQ ‹Ψ ⊳ Q ⟼α ≺ Q'› ‹bn α ♯* Ψ› ‹bn α ♯* P›
obtain P' where PTrans: "Ψ ⊳ P ⟼α ≺ P'" and P'RelQ': "(Ψ, P', Q') ∈ Rel"
by(blast dest: simE)
from PTrans ‹x ♯ Ψ› ‹x ♯ α› have "Ψ ⊳ (νx)P ⟼α ≺ (νx)P'"
by(rule Scope)
moreover from P'RelQ' ‹x ♯ Ψ› have "(Ψ, (νx)P', (νx)Q') ∈ Rel'" by(rule C1)
ultimately show ?case by blast
qed
qed
qed
lemma resChainPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Q :: "('a, 'b, 'c) psi"
and xvec :: "name list"
assumes PSimQ: "Ψ ⊳ P ↝[Rel] Q"
and "eqvt Rel"
and "xvec ♯* Ψ"
and C1: "∧Ψ' R S y. [(Ψ', R, S) ∈ Rel; y ♯ Ψ'] ==> (Ψ', (νy)R, (νy)S) ∈ Rel"
shows "Ψ ⊳ (ν*xvec)P ↝[Rel] (ν*xvec)Q"
using ‹xvec ♯* Ψ›
proof(induct xvec)
case Nil
from PSimQ show ?case by simp
next
case(Cons x xvec)
from ‹(x#xvec) ♯* Ψ› have "x ♯ Ψ" and "xvec ♯* Ψ" by simp+
from ‹xvec ♯* Ψ› have "Ψ ⊳ (ν*xvec)P ↝[Rel] (ν*xvec)Q" by(rule Cons)
moreover note ‹eqvt Rel› ‹x ♯ Ψ›
moreover have "Rel ⊆ Rel" by simp
ultimately have "Ψ ⊳ (νx)((ν*xvec)P) ↝[Rel] (νx)((ν*xvec)Q)" using C1
by(rule resPres)
thus ?case by simp
qed
lemma parPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Q :: "('a, 'b, 'c) psi"
and R :: "('a, 'b, 'c) psi"
and Rel' :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
assumes PRelQ: "∧AR ΨR. [extractFrame R = ⟨AR, ΨR⟩; AR ♯* Ψ; AR ♯* P; AR ♯* Q] ==> (Ψ ⊗ ΨR, P, Q) ∈ Rel"
and Eqvt: "eqvt Rel"
and Eqvt': "eqvt Rel'"
and StatImp: "∧Ψ' S T. (Ψ', S, T) ∈ Rel ==> insertAssertion (extractFrame T) Ψ' ↪F insertAssertion (extractFrame S) Ψ'"
and Sim: "∧Ψ' S T. (Ψ', S, T) ∈ Rel ==> Ψ' ⊳ S ↝[Rel] T"
and Ext: "∧Ψ' S T Ψ''. [(Ψ', S, T) ∈ Rel] ==> (Ψ' ⊗ Ψ'', S, T) ∈ Rel"
and C1: "∧Ψ' S T AU ΨU U. [(Ψ' ⊗ ΨU, S, T) ∈ Rel; extractFrame U = ⟨AU, ΨU⟩; AU ♯* Ψ'; AU ♯* S; AU ♯* T] ==> (Ψ', S ∥ U, T ∥ U) ∈ Rel'"
and C2: "∧Ψ' S T xvec. [(Ψ', S, T) ∈ Rel'; xvec ♯* Ψ'] ==> (Ψ', (ν*xvec)S, (ν*xvec)T) ∈ Rel'"
and C3: "∧Ψ' S T Ψ''. [(Ψ', S, T) ∈ Rel; Ψ' ≃ Ψ''] ==> (Ψ'', S, T) ∈ Rel"
shows "Ψ ⊳ P ∥ R ↝[Rel'] Q ∥ R"
using Eqvt'
proof(induct rule: simI[of _ _ _ _ "()"])
case(cSim α QR)
from ‹bn α ♯* (P ∥ R)› ‹bn α ♯* (Q ∥ R)›
have "bn α ♯* P" and "bn α ♯* Q" and "bn α ♯* R"
by simp+
from ‹Ψ ⊳ Q ∥ R ⟼α ≺ QR› ‹bn α ♯* Ψ› ‹bn α ♯* Q› ‹bn α ♯* R› ‹bn α ♯* subject α›
show ?case
proof(induct rule: parCases[where C = "(P, R)"])
case(cPar1 Q' AR ΨR)
from ‹AR ♯* (P, R)› have "AR ♯* P" by simp
have FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact
from ‹AR ♯* α› ‹bn α ♯* R› FrR
have "bn α ♯* ΨR" by(drule_tac extractFrameFreshChain) auto
from FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q› have "Ψ ⊗ ΨR ⊳ P ↝[Rel] Q"
by(blast intro: Sim PRelQ)
moreover have QTrans: "Ψ ⊗ ΨR ⊳ Q ⟼α ≺ Q'" by fact
ultimately obtain P' where PTrans: "Ψ ⊗ ΨR ⊳ P ⟼α ≺ P'"
and P'RelQ': "(Ψ ⊗ ΨR, P', Q') ∈ Rel"
using ‹bn α ♯* Ψ› ‹bn α ♯* ΨR› ‹bn α ♯* P›
by(force dest: simE)
from PTrans QTrans ‹AR ♯* P› ‹AR ♯* Q› ‹AR ♯* α› ‹bn α ♯* subject α› ‹distinct(bn α)› have "AR ♯* P'" and "AR ♯* Q'"
by(blast dest: freeFreshChainDerivative)+
from PTrans ‹bn α ♯* R› FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* α› have "Ψ ⊳ P ∥ R ⟼α ≺ (P' ∥ R)"
by(rule_tac Par1)
moreover from P'RelQ' FrR ‹AR ♯* Ψ› ‹AR ♯* P'› ‹AR ♯* Q'› have "(Ψ, P' ∥ R, Q' ∥ R) ∈ Rel'" by(rule C1)
ultimately show ?case by blast
next
case(cPar2 R' AQ ΨQ)
from ‹AQ ♯* (P, R)› have "AQ ♯* P" and "AQ ♯* R" by simp+
obtain AP ΨP where FrP: "extractFrame P = ⟨AP, ΨP⟩" and "AP ♯* (Ψ, AQ, ΨQ, α, R)"
by(rule freshFrame)
hence "AP ♯* Ψ" and "AP ♯* AQ" and "AP ♯* ΨQ" and "AP ♯* α" and "AP ♯* R"
by simp+
have FrQ: "extractFrame Q = ⟨AQ, ΨQ⟩" by fact
from ‹AQ ♯* P› FrP ‹AP ♯* AQ› have "AQ ♯* ΨP"
by(drule_tac extractFrameFreshChain) auto
from FrP FrQ ‹bn α ♯* P› ‹bn α ♯* Q› ‹AP ♯* α› ‹AQ ♯* α›
have "bn α ♯* ΨP" and "bn α ♯* ΨQ"
by(force dest: extractFrameFreshChain)+
obtain AR ΨR where FrR: "extractFrame R = ⟨AR, ΨR⟩" and "AR ♯* (Ψ, P, Q, AQ, AP, ΨQ, ΨP, α, R)" and "distinct AR"
by(rule freshFrame)
then have "AR ♯* Ψ" and "AR ♯* P" and "AR ♯* Q" and "AR ♯* AQ" and "AR ♯* AP" and "AR ♯* ΨQ" and "AR ♯* ΨP" and "AR ♯* α" and "AR ♯* R"
by simp+
from ‹AQ ♯* R› FrR ‹AR ♯* AQ› have "AQ ♯* ΨR"
by(drule_tac extractFrameFreshChain) auto
from ‹AP ♯* R› ‹AR ♯* AP› FrR have "AP ♯* ΨR"
by(drule_tac extractFrameFreshChain) auto
have RTrans: "Ψ ⊗ ΨQ ⊳ R ⟼α ≺ R'" by fact
moreover have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ ΨR⟩ ↪F ⟨AP, (Ψ ⊗ ΨP) ⊗ ΨR⟩"
proof -
have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ ΨR⟩ ≃F ⟨AQ, (Ψ ⊗ ΨR) ⊗ ΨQ⟩"
by(metis frameIntAssociativity Commutativity FrameStatEqTrans frameIntCompositionSym FrameStatEqSym)
moreover from FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q›
have "(insertAssertion (extractFrame Q) (Ψ ⊗ ΨR)) ↪F (insertAssertion (extractFrame P) (Ψ ⊗ ΨR))"
by(blast intro: PRelQ StatImp)
with FrP FrQ ‹AP ♯* Ψ› ‹AQ ♯* Ψ› ‹AP ♯* ΨR› ‹AQ ♯* ΨR›
have "⟨AQ, (Ψ ⊗ ΨR) ⊗ ΨQ⟩ ↪F ⟨AP, (Ψ ⊗ ΨR) ⊗ ΨP⟩" using freshCompChain by auto
moreover have "⟨AP, (Ψ ⊗ ΨR) ⊗ ΨP⟩ ≃F ⟨AP, (Ψ ⊗ ΨP) ⊗ ΨR⟩"
by(metis frameIntAssociativity Commutativity FrameStatEqTrans frameIntCompositionSym frameIntAssociativity[THEN FrameStatEqSym])
ultimately show ?thesis
by(rule FrameStatEqImpCompose)
qed
ultimately have "Ψ ⊗ ΨP ⊳ R ⟼α ≺ R'"
using ‹AP ♯* Ψ› ‹AP ♯* ΨQ› ‹AQ ♯* Ψ› ‹AQ ♯* ΨP› ‹AP ♯* R› ‹AQ ♯* R› ‹AP ♯* α› ‹AQ ♯* α›
‹AR ♯* AP› ‹AR ♯* AQ› ‹AR ♯* ΨP› ‹AR ♯* ΨQ› ‹AR ♯* Ψ› FrR ‹distinct AR›
by(force intro: transferFrame)
with ‹bn α ♯* P› ‹AP ♯* Ψ› ‹AP ♯* R› ‹AP ♯* α› FrP have "Ψ ⊳ P ∥ R ⟼α ≺ (P ∥ R')"
by(force intro: Par2)
moreover obtain AR' ΨR' where "extractFrame R' = ⟨AR', ΨR'⟩" and "AR' ♯* Ψ" and "AR' ♯* P" and "AR' ♯* Q"
by(rule_tac freshFrame[where C="(Ψ, P, Q)"]) auto
moreover from RTrans FrR ‹distinct AR› ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q› ‹AR ♯* R› ‹AR ♯* α› ‹bn α ♯* Ψ› ‹bn α ♯* P› ‹bn α ♯* Q› ‹bn α ♯* R› ‹bn α ♯* subject α› ‹distinct(bn α)›
obtain p Ψ' AR' ΨR' where S: "set p ⊆ set(bn α) × set(bn(p ∙ α))" and "(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'" and FrR': "extractFrame R' = ⟨AR', ΨR'⟩"
and "bn(p ∙ α) ♯* R" and "bn(p ∙ α) ♯* Ψ" and "bn(p ∙ α) ♯* P" and "bn(p ∙ α) ♯* Q" and "bn(p ∙ α) ♯* R"
and "AR' ♯* Ψ" and "AR' ♯* P" and "AR' ♯* Q"
by(rule_tac C="(Ψ, P, Q, R)" and C'="(Ψ, P, Q, R)" in expandFrame) (assumption | simp)+
from ‹AR ♯* Ψ› have "(p ∙ AR) ♯* (p ∙ Ψ)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹bn α ♯* Ψ› ‹bn(p ∙ α) ♯* Ψ› S have "(p ∙ AR) ♯* Ψ" by simp
from ‹AR ♯* P› have "(p ∙ AR) ♯* (p ∙ P)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹bn α ♯* P› ‹bn(p ∙ α) ♯* P› S have "(p ∙ AR) ♯* P" by simp
from ‹AR ♯* Q› have "(p ∙ AR) ♯* (p ∙ Q)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹bn α ♯* Q› ‹bn(p ∙ α) ♯* Q› S have "(p ∙ AR) ♯* Q" by simp
from FrR have "(p ∙ extractFrame R) = p ∙ ⟨AR, ΨR⟩" by simp
with ‹bn α ♯* R› ‹bn(p ∙ α) ♯* R› S have "extractFrame R = ⟨(p ∙ AR), (p ∙ ΨR)⟩"
by(simp add: eqvts)
with ‹(p ∙ AR) ♯* Ψ› ‹(p ∙ AR) ♯* P› ‹(p ∙ AR) ♯* Q› have "(Ψ ⊗ (p ∙ ΨR), P, Q) ∈ Rel" by(rule_tac PRelQ)
hence "((Ψ ⊗ (p ∙ ΨR)) ⊗ Ψ', P, Q) ∈ Rel" by(rule Ext)
with ‹(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', P, Q) ∈ Rel" by(blast intro: C3 Associativity compositionSym)
with FrR' ‹AR' ♯* Ψ› ‹AR' ♯* P› ‹AR' ♯* Q› have "(Ψ, P ∥ R', Q ∥ R') ∈ Rel'" by(rule_tac C1)
ultimately show ?case by blast
next
case(cComm1 ΨR M N Q' AQ ΨQ K xvec R' AR)
have FrQ: "extractFrame Q = ⟨AQ, ΨQ⟩" by fact
from ‹AQ ♯* (P, R)› have "AQ ♯* P" and "AQ ♯* R" by simp+
have FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact
from ‹AR ♯* (P, R)› have "AR ♯* P" and "AR ♯* R" by simp+
from ‹xvec ♯* (P, R)› have "xvec ♯* P" and "xvec ♯* R" by simp+
obtain AP ΨP where FrP: "extractFrame P = ⟨AP, ΨP⟩" and "AP ♯* (Ψ, AQ, ΨQ, AR, M, N, K, R, P, xvec)" and "distinct AP"
by(rule freshFrame)
hence "AP ♯* Ψ" and "AP ♯* AQ" and "AP ♯* ΨQ" and "AP ♯* M" and "AP ♯* R"
and "AP ♯* N" and "AP ♯* K" and "AP ♯* AR" and "AP ♯* P" and "AP ♯* xvec"
by simp+
have QTrans: "Ψ ⊗ ΨR ⊳ Q ⟼M(N) ≺ Q'" and RTrans: "Ψ ⊗ ΨQ ⊳ R ⟼K(ν*xvec)⟨N⟩ ≺ R'"
and MeqK: "Ψ ⊗ ΨQ ⊗ ΨR ⊨ M ↔K" by fact+
from FrP FrR ‹AQ ♯* P› ‹AP ♯* R› ‹AR ♯* P› ‹AP ♯* AQ› ‹AP ♯* AR› ‹AP ♯* xvec› ‹xvec ♯* P›
have "AP ♯* ΨR" and "AQ ♯* ΨP" and "AR ♯* ΨP" and "xvec ♯* ΨP"
by(fastforce dest!: extractFrameFreshChain)+
from RTrans FrR ‹distinct AR› ‹AR ♯* R› ‹AR ♯* xvec› ‹xvec ♯* R› ‹xvec ♯* Q› ‹xvec ♯* Ψ› ‹xvec ♯* ΨQ› ‹AR ♯* Q›
‹AR ♯* Ψ› ‹AR ♯* ΨQ› ‹xvec ♯* K› ‹AR ♯* K› ‹AR ♯* N› ‹AR ♯* R› ‹xvec ♯* R› ‹AR ♯* P› ‹xvec ♯* P› ‹AP ♯* AR› ‹AP ♯* xvec›
‹AQ ♯* AR› ‹AQ ♯* xvec› ‹AR ♯* ΨP› ‹xvec ♯* ΨP› ‹distinct xvec› ‹xvec ♯* M›
obtain p Ψ' AR' ΨR' where S: "set p ⊆ set xvec × set(p ∙ xvec)" and FrR': "extractFrame R' = ⟨AR', ΨR'⟩"
and "(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'" and "AR' ♯* Q" and "AR' ♯* Ψ" and "(p ∙ xvec) ♯* Ψ"
and "(p ∙ xvec) ♯* Q" and "(p ∙ xvec) ♯* ΨQ" and "(p ∙ xvec) ♯* K" and "(p ∙ xvec) ♯* R"
and "(p ∙ xvec) ♯* P" and "(p ∙ xvec) ♯* AP" and "(p ∙ xvec) ♯* AQ" and "(p ∙ xvec) ♯* ΨP"
and "AR' ♯* P" and "AR' ♯* N"
by(rule_tac C="(Ψ, Q, ΨQ, K, R, P, AP, AQ, ΨP)" and C'="(Ψ, Q, ΨQ, K, R, P, AP, AQ, ΨP)" in expandFrame)
(assumption | simp)+
from ‹AR ♯* Ψ› have "(p ∙ AR) ♯* (p ∙ Ψ)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹xvec ♯* Ψ› ‹(p ∙ xvec) ♯* Ψ› S have "(p ∙ AR) ♯* Ψ" by simp
from ‹AR ♯* P› have "(p ∙ AR) ♯* (p ∙ P)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹xvec ♯* P› ‹(p ∙ xvec) ♯* P› S have "(p ∙ AR) ♯* P" by simp
from ‹AR ♯* Q› have "(p ∙ AR) ♯* (p ∙ Q)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹xvec ♯* Q› ‹(p ∙ xvec) ♯* Q› S have "(p ∙ AR) ♯* Q" by simp
from ‹AR ♯* R› have "(p ∙ AR) ♯* (p ∙ R)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹xvec ♯* R› ‹(p ∙ xvec) ♯* R› S have "(p ∙ AR) ♯* R" by simp
from ‹AR ♯* K› have "(p ∙ AR) ♯* (p ∙ K)" by(simp add: pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst])
with ‹xvec ♯* K› ‹(p ∙ xvec) ♯* K› S have "(p ∙ AR) ♯* K" by simp
from ‹AP ♯* xvec› ‹(p ∙ xvec) ♯* AP› ‹AP ♯* M› S have "AP ♯* (p ∙ M)" by(simp add: freshChainSimps)
from ‹AQ ♯* xvec› ‹(p ∙ xvec) ♯* AQ› ‹AQ ♯* M› S have "AQ ♯* (p ∙ M)" by(simp add: freshChainSimps)
from ‹AP ♯* xvec› ‹(p ∙ xvec) ♯* AP› ‹AP ♯* AR› S have "(p ∙ AR) ♯* AP" by(simp add: freshChainSimps)
from ‹AQ ♯* xvec› ‹(p ∙ xvec) ♯* AQ› ‹AQ ♯* AR› S have "(p ∙ AR) ♯* AQ" by(simp add: freshChainSimps)
from QTrans S ‹xvec ♯* Q› ‹(p ∙ xvec) ♯* Q› have "(p ∙ (Ψ ⊗ ΨR)) ⊳ Q ⟼ (p ∙ M)(N) ≺ Q'"
by(rule_tac inputPermFrameSubject) (assumption | auto simp add: fresh_star_def)+
with ‹xvec ♯* Ψ› ‹(p ∙ xvec) ♯* Ψ› S have QTrans: "(Ψ ⊗ (p ∙ ΨR)) ⊳ Q ⟼ (p ∙ M)(N) ≺ Q'"
by(simp add: eqvts)
from FrR have "(p ∙ extractFrame R) = p ∙ ⟨AR, ΨR⟩" by simp
with ‹xvec ♯* R› ‹(p ∙ xvec) ♯* R› S have FrR: "extractFrame R = ⟨(p ∙ AR), (p ∙ ΨR)⟩"
by(simp add: eqvts)
note RTrans FrR
moreover from FrR ‹(p ∙ AR) ♯* Ψ› ‹(p ∙ AR) ♯* P› ‹(p ∙ AR) ♯* Q› have "Ψ ⊗ (p ∙ ΨR) ⊳ P ↝[Rel] Q"
by(metis Sim PRelQ)
with QTrans obtain P' where PTrans: "Ψ ⊗ (p ∙ ΨR) ⊳ P ⟼(p ∙ M)(N) ≺ P'" and P'RelQ': "(Ψ ⊗ (p ∙ ΨR), P', Q') ∈ Rel"
by(force dest: simE)
from PTrans QTrans ‹AR' ♯* P› ‹AR' ♯* Q› ‹AR' ♯* N› have "AR' ♯* P'" and "AR' ♯* Q'"
by(blast dest: inputFreshChainDerivative)+
note PTrans
moreover from MeqK have "(p ∙ (Ψ ⊗ ΨQ ⊗ ΨR)) ⊨ (p ∙ M) ↔ (p ∙ K)" by(rule chanEqClosed)
with ‹xvec ♯* Ψ› ‹(p ∙ xvec) ♯* Ψ› ‹xvec ♯* ΨQ› ‹(p ∙ xvec) ♯* ΨQ› ‹xvec ♯* K› ‹(p ∙ xvec) ♯* K› S
have MeqK: "Ψ ⊗ ΨQ ⊗ (p ∙ ΨR) ⊨ (p ∙ M) ↔ K" by(simp add: eqvts)
moreover have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ (p ∙ ΨR)⟩ ↪F ⟨AP, (Ψ ⊗ ΨP) ⊗ (p ∙ ΨR)⟩"
proof -
have "⟨AP, (Ψ ⊗ (p ∙ ΨR)) ⊗ ΨP⟩ ≃F ⟨AP, (Ψ ⊗ ΨP) ⊗ (p ∙ ΨR)⟩"
by(metis frameResChainPres frameNilStatEq Commutativity AssertionStatEqTrans Composition Associativity)
moreover from FrR ‹(p ∙ AR) ♯* Ψ› ‹(p ∙ AR) ♯* P› ‹(p ∙ AR) ♯* Q›
have "(insertAssertion (extractFrame Q) (Ψ ⊗ (p ∙ ΨR))) ↪F (insertAssertion (extractFrame P) (Ψ ⊗ (p ∙ ΨR)))"
by(metis PRelQ StatImp)
with FrP FrQ ‹AP ♯* Ψ› ‹AQ ♯* Ψ› ‹AP ♯* ΨR› ‹AQ ♯* ΨR› ‹AP ♯* xvec› ‹(p ∙ xvec) ♯* AP› ‹AQ ♯* xvec› ‹(p ∙ xvec) ♯* AQ› S
have "⟨AQ, (Ψ ⊗ (p ∙ ΨR)) ⊗ ΨQ⟩ ↪F ⟨AP, (Ψ ⊗ (p ∙ ΨR)) ⊗ ΨP⟩" using freshCompChain
by(simp add: freshChainSimps)
moreover have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ (p ∙ ΨR)⟩ ≃F ⟨AQ, (Ψ ⊗ (p ∙ ΨR)) ⊗ ΨQ⟩"
by(metis frameResChainPres frameNilStatEq Commutativity AssertionStatEqTrans Composition Associativity)
ultimately show ?thesis by(rule_tac FrameStatEqImpCompose)
qed
moreover note FrP FrQ ‹distinct AP›
moreover from ‹distinct AR› have "distinct(p ∙ AR)" by simp
moreover note ‹(p ∙ AR) ♯* AP› ‹(p ∙ AR) ♯* AQ› ‹(p ∙ AR) ♯* Ψ› ‹(p ∙ AR) ♯* P› ‹(p ∙ AR) ♯* Q› ‹(p ∙ AR) ♯* R› ‹(p ∙ AR) ♯* K›
‹AP ♯* Ψ› ‹AP ♯* R› ‹AP ♯* P› ‹AP ♯* (p ∙ M)› ‹AQ ♯* R› ‹AQ ♯* (p ∙ M)› ‹AP ♯* xvec› ‹xvec ♯* P› ‹AP ♯* R›
ultimately obtain K' where "Ψ ⊗ ΨP ⊳ R ⟼K'(ν*xvec)⟨N⟩ ≺ R'" and "Ψ ⊗ ΨP ⊗ (p ∙ ΨR) ⊨ (p ∙ M) ↔ K'" and "(p ∙ AR) ♯* K'"
by(rule_tac comm1Aux)
with PTrans FrP have "Ψ ⊳ P ∥ R ⟼τ ≺ (ν*xvec)(P' ∥ R')" using FrR ‹(p ∙ AR) ♯* Ψ› ‹(p ∙ AR) ♯* P› ‹(p ∙ AR) ♯* R›
‹xvec ♯* P› ‹AP ♯* Ψ› ‹AP ♯* P› ‹AP ♯* R› ‹AP ♯* (p ∙ M)› ‹(p ∙ AR) ♯* K'› ‹(p ∙ AR) ♯* AP›
by(rule_tac Comm1) (assumption | simp)+
moreover from P'RelQ' have "((Ψ ⊗ (p ∙ ΨR)) ⊗ Ψ', P', Q') ∈ Rel" by(rule Ext)
with ‹(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', P', Q') ∈ Rel" by(metis C3 Associativity compositionSym)
with FrR' ‹AR' ♯* P'› ‹AR' ♯* Q'› ‹AR' ♯* Ψ› have "(Ψ, P' ∥ R', Q' ∥ R') ∈ Rel'" by(rule_tac C1)
with ‹xvec ♯* Ψ› have "(Ψ, (ν*xvec)(P' ∥ R'), (ν*xvec)(Q' ∥ R')) ∈ Rel'" by(rule_tac C2)
ultimately show ?case by blast
next
case(cComm2 ΨR M xvec N Q' AQ ΨQ K R' AR)
have FrQ: "extractFrame Q = ⟨AQ, ΨQ⟩" by fact
from ‹AQ ♯* (P, R)› have "AQ ♯* P" and "AQ ♯* R" by simp+
have FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact
from ‹AR ♯* (P, R)› have "AR ♯* P" and "AR ♯* R" by simp+
from ‹xvec ♯* (P, R)› have "xvec ♯* P" and "xvec ♯* R" by simp+
obtain AP ΨP where FrP: "extractFrame P = ⟨AP, ΨP⟩" and "AP ♯* (Ψ, AQ, ΨQ, AR, M, N, K, R, P, xvec)" and "distinct AP"
by(rule freshFrame)
hence "AP ♯* Ψ" and "AP ♯* AQ" and "AP ♯* ΨQ" and "AP ♯* M" and "AP ♯* R"
and "AP ♯* N" "AP ♯* K" and "AP ♯* AR" and "AP ♯* P" and "AP ♯* xvec"
by simp+
from FrP FrR ‹AQ ♯* P› ‹AP ♯* R› ‹AR ♯* P› ‹AP ♯* AQ› ‹AP ♯* AR› ‹AP ♯* xvec› ‹xvec ♯* P›
have "AP ♯* ΨR" and "AQ ♯* ΨP" and "AR ♯* ΨP" and "xvec ♯* ΨP"
by(fastforce dest!: extractFrameFreshChain)+
have QTrans: "Ψ ⊗ ΨR ⊳ Q ⟼M(ν*xvec)⟨N⟩ ≺ Q'" by fact
note ‹Ψ ⊗ ΨQ ⊳ R ⟼K(N) ≺ R'› FrR ‹Ψ ⊗ ΨQ ⊗ ΨR ⊨ M ↔ K›
moreover from FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q› have "Ψ ⊗ ΨR ⊳ P ↝[Rel] Q" by(metis PRelQ Sim)
with QTrans obtain P' where PTrans: "Ψ ⊗ ΨR ⊳ P ⟼M(ν*xvec)⟨N⟩ ≺ P'" and P'RelQ': "(Ψ ⊗ ΨR, P', Q') ∈ Rel"
using ‹xvec ♯* Ψ› ‹xvec ♯* ΨR› ‹xvec ♯* P›
by(force dest: simE)
from PTrans QTrans ‹AR ♯* P› ‹AR ♯* Q› ‹AR ♯* xvec› ‹xvec ♯* M› ‹distinct xvec› have "AR ♯* P'" and "AR ♯* Q'"
by(blast dest: outputFreshChainDerivative)+
note PTrans ‹Ψ ⊗ ΨQ ⊗ ΨR ⊨ M ↔ K›
moreover have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ ΨR⟩ ↪F ⟨AP, (Ψ ⊗ ΨP) ⊗ ΨR⟩"
proof -
have "⟨AP, (Ψ ⊗ ΨR) ⊗ ΨP⟩ ≃F ⟨AP, (Ψ ⊗ ΨP) ⊗ ΨR⟩"
by(metis frameResChainPres frameNilStatEq Commutativity AssertionStatEqTrans Composition Associativity)
moreover from FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q›
have "(insertAssertion (extractFrame Q) (Ψ ⊗ ΨR)) ↪F (insertAssertion (extractFrame P) (Ψ ⊗ ΨR))"
by(metis PRelQ StatImp)
with FrP FrQ ‹AP ♯* Ψ› ‹AQ ♯* Ψ› ‹AP ♯* ΨR› ‹AQ ♯* ΨR›
have "⟨AQ, (Ψ ⊗ ΨR) ⊗ ΨQ⟩ ↪F ⟨AP, (Ψ ⊗ ΨR) ⊗ ΨP⟩" using freshCompChain by simp
moreover have "⟨AQ, (Ψ ⊗ ΨQ) ⊗ ΨR⟩ ≃F ⟨AQ, (Ψ ⊗ ΨR) ⊗ ΨQ⟩"
by(metis frameResChainPres frameNilStatEq Commutativity AssertionStatEqTrans Composition Associativity)
ultimately show ?thesis by(rule_tac FrameStatEqImpCompose)
qed
moreover note FrP FrQ ‹distinct AP› ‹distinct AR›
moreover from ‹AP ♯* AR› ‹AQ ♯* AR› have "AR ♯* AP" and "AR ♯* AQ" by simp+
moreover note ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* Q› ‹AR ♯* R› ‹AR ♯* K› ‹AP ♯* Ψ› ‹AP ♯* P›
‹AP ♯* R› ‹AP ♯* M› ‹AQ ♯* R› ‹AQ ♯* M› ‹AR ♯* xvec› ‹xvec ♯* M›
ultimately obtain K' where "Ψ ⊗ ΨP ⊳ R ⟼K'(N) ≺ R'" and "Ψ ⊗ ΨP ⊗ ΨR ⊨ M ↔ K'" and "AR ♯* K'"
by(rule_tac comm2Aux) assumption+
with PTrans FrP have "Ψ ⊳ P ∥ R ⟼τ ≺ (ν*xvec)(P' ∥ R')" using FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* R›
‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* R› and ‹xvec ♯* R› ‹AP ♯* Ψ› ‹AP ♯* P› ‹AP ♯* R› ‹AP ♯* AR› ‹AP ♯* M› ‹AR ♯* K'›
by(force intro: Comm2)
moreover from ‹Ψ ⊗ ΨP ⊳ R ⟼K'(N) ≺ R'› FrR ‹distinct AR› ‹AR ♯* Ψ› ‹AR ♯* R› ‹AR ♯* P'› ‹AR ♯* Q'› ‹AR ♯* N› ‹AR ♯* K'›
obtain Ψ' AR' ΨR' where ReqR': "ΨR ⊗ Ψ' ≃ ΨR'" and FrR': "extractFrame R' = ⟨AR', ΨR'⟩"
and "AR' ♯* Ψ" and "AR' ♯* P'" and "AR' ♯* Q'"
by(rule_tac C="(Ψ, P', Q')" and C'="Ψ" in expandFrame) auto
from P'RelQ' have "((Ψ ⊗ ΨR) ⊗ Ψ', P', Q') ∈ Rel" by(rule Ext)
with ReqR' have "(Ψ ⊗ ΨR', P', Q') ∈ Rel" by(metis C3 Associativity compositionSym)
with FrR' ‹AR' ♯* P'› ‹AR' ♯* Q'› ‹AR' ♯* Ψ› have "(Ψ, P' ∥ R', Q' ∥ R') ∈ Rel'"
by(rule_tac C1)
with ‹xvec ♯* Ψ› have "(Ψ, (ν*xvec)(P' ∥ R'), (ν*xvec)(Q' ∥ R')) ∈ Rel'" by(rule_tac C2)
ultimately show ?case by blast
qed
qed
unbundle no relcomp_syntax
lemma bangPres:
fixes Ψ :: 'b
and P :: "('a, 'b, 'c) psi"
and Q :: "('a, 'b, 'c) psi"
and R :: "('a, 'b, 'c) psi"
and Rel :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
and Rel' :: "('b × ('a, 'b, 'c) psi × ('a, 'b, 'c) psi) set"
assumes "(Ψ, P, Q) ∈ Rel"
and "eqvt Rel'"
and "guarded P"
and "guarded Q"
and cSim: "∧Ψ' S T. (Ψ', S, T) ∈ Rel ==> Ψ' ⊳ S ↝[Rel] T"
and cExt: "∧Ψ' S T Ψ''. (Ψ', S, T) ∈ Rel ==> (Ψ' ⊗ Ψ'', S, T) ∈ Rel"
and cSym: "∧Ψ' S T. (Ψ', S, T) ∈ Rel ==> (Ψ', T, S) ∈ Rel"
and StatEq: "∧Ψ' S T Ψ''. [(Ψ', S, T) ∈ Rel; Ψ' ≃ Ψ''] ==> (Ψ'', S, T) ∈ Rel"
and Closed: "∧Ψ' S T p. (Ψ', S, T) ∈ Rel ==> ((p::name prm) ∙ Ψ', p ∙ S, p ∙ T) ∈ Rel"
and Assoc: "∧Ψ' S T U. (Ψ', S ∥ (T ∥ U), (S ∥ T) ∥ U) ∈ Rel"
and ParPres: "∧Ψ' S T U. (Ψ', S, T) ∈ Rel ==> (Ψ', S ∥ U, T ∥ U) ∈ Rel"
and FrameParPres: "∧Ψ' ΨU S T U AU. [(Ψ' ⊗ ΨU, S, T) ∈ Rel; extractFrame U = ⟨AU, ΨU⟩; AU ♯* Ψ'; AU ♯* S; AU ♯* T] ==>
(Ψ', U ∥ S, U ∥ T) ∈ Rel"
and ResPres: "∧Ψ' S T xvec. [(Ψ', S, T) ∈ Rel; xvec ♯* Ψ'] ==> (Ψ', (ν*xvec)S, (ν*xvec)T) ∈ Rel"
and ScopeExt: "∧xvec Ψ' S T. [xvec ♯* Ψ'; xvec ♯* T] ==> (Ψ', (ν*xvec)(S ∥ T), ((ν*xvec)S) ∥ T) ∈ Rel"
and Trans: "∧Ψ' S T U. [(Ψ', S, T) ∈ Rel; (Ψ', T, U) ∈ Rel] ==> (Ψ', S, U) ∈ Rel"
and Compose: "∧Ψ' S T U O. [(Ψ', S, T) ∈ Rel; (Ψ', T, U) ∈ Rel'; (Ψ', U, O) ∈ Rel] ==> (Ψ', S, O) ∈ Rel'"
and C1: "∧Ψ S T U. [(Ψ, S, T) ∈ Rel; guarded S; guarded T] ==> (Ψ, U ∥ !S, U ∥ !T) ∈ Rel'"
and Der: "∧Ψ' S α S' T. [Ψ' ⊳ !S ⟼α ≺ S'; (Ψ', S, T) ∈ Rel; bn α ♯* Ψ'; bn α ♯* S; bn α ♯* T; guarded T; bn α ♯* subject α] ==>
∃T' U O. Ψ' ⊳ !T ⟼α ≺ T' ∧ (Ψ', S', U ∥ !S) ∈ Rel ∧ (Ψ', T', O ∥ !T) ∈ Rel ∧
(Ψ', U, O) ∈ Rel ∧ ((supp U)::name set) ⊆ supp S' ∧
((supp O)::name set) ⊆ supp T'"
shows "Ψ ⊳ R ∥ !P ↝[Rel'] R ∥ !Q"
using ‹eqvt Rel'›
proof(induct rule: simI[of _ _ _ _ "()"])
case(cSim α RQ')
from ‹bn α ♯* (R ∥ !P)› ‹bn α ♯* (R ∥ !Q)› have "bn α ♯* P" and "bn α ♯* (!Q)" and "bn α ♯* Q" and "bn α ♯* R" by simp+
from ‹Ψ ⊳ R ∥ !Q ⟼α ≺ RQ'› ‹bn α ♯* Ψ› ‹bn α ♯* R› ‹bn α ♯* !Q› ‹bn α ♯* subject α› show ?case
proof(induct rule: parCases[where C=P])
case(cPar1 R' AQ ΨQ)
from ‹extractFrame (!Q) = ⟨AQ, ΨQ⟩› have "AQ = []" and "ΨQ = SBottom'" by simp+
with ‹Ψ ⊗ ΨQ ⊳ R ⟼α ≺ R'› ‹bn α ♯* P› have "Ψ ⊳ R ∥ !P ⟼α ≺ (R' ∥ !P)"
by(rule_tac Par1) (assumption | simp)+
moreover from ‹(Ψ, P, Q) ∈ Rel› ‹guarded P› ‹guarded Q› have "(Ψ, R' ∥ !P, R' ∥ !Q) ∈ Rel'"
by(rule C1)
ultimately show ?case by blast
next
case(cPar2 Q' AR ΨR)
have QTrans: "Ψ ⊗ ΨR ⊳ !Q ⟼α ≺ Q'" and FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact+
with ‹bn α ♯* R› ‹AR ♯* α› have "bn α ♯* ΨR" by(force dest: extractFrameFreshChain)
with QTrans ‹(Ψ, P, Q) ∈ Rel› ‹bn α ♯* Ψ›\‹bn α ♯* P› ‹bn α ♯* Q› ‹guarded P› ‹bn α ♯* subject α›
obtain P' S T where PTrans: "Ψ ⊗ ΨR ⊳ !P ⟼α ≺ P'" and "(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel"
and "(Ψ ⊗ ΨR, Q', S ∥ !Q) ∈ Rel" and "(Ψ ⊗ ΨR, S, T) ∈ Rel"
and suppT: "((supp T)::name set) ⊆ supp P'" and suppS: "((supp S)::name set) ⊆ supp Q'"
by(drule_tac cSym) (auto dest: Der cExt)
from PTrans FrR ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* α› ‹bn α ♯* R› have "Ψ ⊳ R ∥ !P ⟼α ≺ (R ∥ P')"
by(rule_tac Par2) auto
moreover
{
from ‹AR ♯* P› ‹AR ♯* (!Q)› ‹AR ♯* α› PTrans QTrans ‹bn α ♯* subject α› ‹distinct(bn α)› have "AR ♯* P'" and "AR ♯* Q'"
by(force dest: freeFreshChainDerivative)+
from ‹(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel› FrR ‹AR ♯* Ψ› ‹AR ♯* P'› ‹AR ♯* P› suppT have "(Ψ, R ∥ P', R ∥ (T ∥ !P)) ∈ Rel"
by(rule_tac FrameParPres) (auto simp add: fresh_star_def fresh_def psi.supp)
hence "(Ψ, R ∥ P', (R ∥ T) ∥ !P) ∈ Rel" by(blast intro: Assoc Trans)
moreover from ‹(Ψ, P, Q) ∈ Rel› ‹guarded P› ‹guarded Q› have "(Ψ, (R ∥ T) ∥ !P, (R ∥ T) ∥ !Q) ∈ Rel'"
by(rule C1)
moreover from ‹(Ψ ⊗ ΨR, Q', S ∥ !Q) ∈ Rel› ‹(Ψ ⊗ ΨR, S, T) ∈ Rel› have "(Ψ ⊗ ΨR, Q', T ∥ !Q) ∈ Rel"
by(blast intro: ParPres Trans)
with FrR ‹AR ♯* Ψ› ‹AR ♯* P'› ‹AR ♯* Q'› ‹AR ♯* (!Q)› suppT suppS have "(Ψ, R ∥ Q', R ∥ (T ∥ !Q)) ∈ Rel"
by(rule_tac FrameParPres) (auto simp add: fresh_star_def fresh_def psi.supp)
hence "(Ψ, R ∥ Q', (R ∥ T) ∥ !Q) ∈ Rel" by(blast intro: Assoc Trans)
ultimately have "(Ψ, R ∥ P', R ∥ Q') ∈ Rel'" by(blast intro: cSym Compose)
}
ultimately show ?case by blast
next
case(cComm1 ΨQ M N R' AR ΨR K xvec Q' AQ)
from ‹extractFrame (!Q) = ⟨AQ, ΨQ⟩› have "AQ = []" and "ΨQ = SBottom'" by simp+
have RTrans: "Ψ ⊗ ΨQ ⊳ R ⟼M(N) ≺ R'" and FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact+
moreover have QTrans: "Ψ ⊗ ΨR ⊳ !Q ⟼K(ν*xvec)⟨N⟩ ≺ Q'" by fact
from FrR ‹xvec ♯* R› ‹AR ♯* xvec› have "xvec ♯* ΨR" by(force dest: extractFrameFreshChain)
with QTrans ‹(Ψ, P, Q) ∈ Rel› ‹xvec ♯* Ψ›\‹xvec ♯* P› ‹xvec ♯* (!Q)› ‹guarded P› ‹xvec ♯* K›
obtain P' S T where PTrans: "Ψ ⊗ ΨR ⊳ !P ⟼K(ν*xvec)⟨N⟩ ≺ P'" and "(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel"
and "(Ψ ⊗ ΨR, Q', S ∥ !Q) ∈ Rel" and "(Ψ ⊗ ΨR, S, T) ∈ Rel"
and suppT: "((supp T)::name set) ⊆ supp P'" and suppS: "((supp S)::name set) ⊆ supp Q'"
by(drule_tac cSym) (fastforce dest: Der intro: cExt)
note ‹Ψ ⊗ ΨR ⊗ ΨQ ⊨ M ↔ K›
ultimately have "Ψ ⊳ R ∥ !P ⟼τ ≺ (ν*xvec)(R' ∥ P')"
using PTrans ‹ΨQ = SBottom'› ‹xvec ♯* R› ‹AR ♯* Ψ› ‹AR ♯* R› ‹AR ♯* M› ‹AR ♯* P›
by(rule_tac Comm1) (assumption | simp)+
moreover from ‹AR ♯* P› ‹AR ♯* (!Q)› ‹AR ♯* xvec› PTrans QTrans ‹xvec ♯* K› ‹distinct xvec›
have "AR ♯* P'" and "AR ♯* Q'" by(force dest: outputFreshChainDerivative)+
moreover with RTrans FrR ‹distinct AR› ‹AR ♯* R› ‹AR ♯* N› ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* (!Q)› ‹AR ♯* M›
obtain Ψ' AR' ΨR' where FrR': "extractFrame R' = ⟨AR', ΨR'⟩" and "ΨR ⊗ Ψ' ≃ ΨR'" and "AR' ♯* Ψ"
and "AR' ♯* P'" and "AR' ♯* Q'" and "AR' ♯* P" and "AR' ♯* Q"
by(rule_tac C="(Ψ, P, P', Q, Q')" and C'=Ψ in expandFrame) auto
moreover
{
from ‹(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel› have "((Ψ ⊗ ΨR) ⊗ Ψ', P', T ∥ !P) ∈ Rel" by(rule cExt)
with ‹ΨR ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', P', T ∥ !P) ∈ Rel"
by(metis Associativity StatEq compositionSym)
with FrR' ‹AR' ♯* Ψ› ‹AR' ♯* P'› ‹AR' ♯* P› suppT have "(Ψ, R' ∥ P', R' ∥ (T ∥ !P)) ∈ Rel"
by(rule_tac FrameParPres) (auto simp add: fresh_star_def fresh_def psi.supp)
hence "(Ψ, R' ∥ P', (R' ∥ T) ∥ !P) ∈ Rel" by(blast intro: Assoc Trans)
with ‹xvec ♯* Ψ› ‹xvec ♯* P› have "(Ψ, (ν*xvec)(R' ∥ P'), ((ν*xvec)(R' ∥ T)) ∥ !P) ∈ Rel"
by(metis ResPres psiFreshVec ScopeExt Trans)
moreover from ‹(Ψ, P, Q) ∈ Rel› ‹guarded P› ‹guarded Q› have "(Ψ, ((ν*xvec)(R' ∥ T)) ∥ !P, ((ν*xvec)(R' ∥ T)) ∥ !Q) ∈ Rel'"
by(rule C1)
moreover from ‹(Ψ ⊗ ΨR, Q', S ∥ !Q) ∈ Rel› ‹(Ψ ⊗ ΨR, S, T) ∈ Rel› have "(Ψ ⊗ ΨR, Q', T ∥ !Q) ∈ Rel"
by(blast intro: ParPres Trans)
hence "((Ψ ⊗ ΨR) ⊗ Ψ', Q', T ∥ !Q) ∈ Rel" by(rule cExt)
with ‹ΨR ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', Q', T ∥ !Q) ∈ Rel"
by(metis Associativity StatEq compositionSym)
with FrR' ‹AR' ♯* Ψ› ‹AR' ♯* P'› ‹AR' ♯* Q'› ‹AR' ♯* Q› suppT suppS have "(Ψ, R' ∥ Q', R' ∥ (T ∥ !Q)) ∈ Rel"
by(rule_tac FrameParPres) (auto simp add: fresh_star_def fresh_def psi.supp)
hence "(Ψ, R' ∥ Q', (R' ∥ T) ∥ !Q) ∈ Rel" by(blast intro: Assoc Trans)
with ‹xvec ♯* Ψ› ‹xvec ♯* (!Q)› have "(Ψ, (ν*xvec)(R' ∥ Q'), ((ν*xvec)(R' ∥ T)) ∥ !Q) ∈ Rel"
by(metis ResPres psiFreshVec ScopeExt Trans)
ultimately have "(Ψ, (ν*xvec)(R' ∥ P'), (ν*xvec)(R' ∥ Q')) ∈ Rel'" by(blast intro: cSym Compose)
}
ultimately show ?case by blast
next
case(cComm2 ΨQ M xvec N R' AR ΨR K Q' AQ)
from ‹extractFrame (!Q) = ⟨AQ, ΨQ⟩› have "AQ = []" and "ΨQ = SBottom'" by simp+
have RTrans: "Ψ ⊗ ΨQ ⊳ R ⟼M(ν*xvec)⟨N⟩ ≺ R'" and FrR: "extractFrame R = ⟨AR, ΨR⟩" by fact+
then obtain p Ψ' AR' ΨR' where S: "set p ⊆ set xvec × set(p ∙ xvec)"
and FrR': "extractFrame R' = ⟨AR', ΨR'⟩" and "(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'" and "AR' ♯* Ψ"
and "AR' ♯* N" and "AR' ♯* R'" and "AR' ♯* P" and "AR' ♯* Q" and "(p ∙ xvec) ♯* Ψ"
and "(p ∙ xvec) ♯* P" and "(p ∙ xvec) ♯* Q" and "xvec ♯* AR'" and "(p ∙ xvec) ♯* AR'"
and "distinctPerm p" and "(p ∙ xvec) ♯* R'" and "(p ∙ xvec) ♯* N"
using ‹distinct AR› ‹AR ♯* R› ‹AR ♯* M› ‹AR ♯* xvec› ‹AR ♯* N› ‹AR ♯* Ψ› ‹AR ♯* P› ‹AR ♯* (!Q)›
‹xvec ♯* Ψ› ‹xvec ♯* P› ‹xvec ♯* (!Q)› ‹xvec ♯* R› ‹xvec ♯* M› ‹distinct xvec›
by(rule_tac C="(Ψ, P, Q)" and C'="(Ψ, P, Q)" in expandFrame) (assumption | simp)+
from RTrans S ‹(p ∙ xvec) ♯* N› ‹(p ∙ xvec) ♯* R'› have "Ψ ⊗ ΨQ ⊳ R ⟼M(ν*(p ∙ xvec))⟨(p ∙ N)⟩ ≺ (p ∙ R')"
apply(simp add: residualInject)
by(subst boundOutputChainAlpha''[symmetric]) auto
moreover have QTrans: "Ψ ⊗ ΨR ⊳ !Q ⟼K(N) ≺ Q'" by fact
with QTrans S ‹(p ∙ xvec) ♯* N› have "Ψ ⊗ ΨR ⊳ !Q ⟼K((p ∙ N)) ≺ (p ∙ Q')" using ‹distinctPerm p› ‹xvec ♯* (!Q)› ‹(p ∙ xvec) ♯* Q›
by(rule_tac inputAlpha) auto
with ‹(Ψ, P, Q) ∈ Rel› ‹guarded P›
obtain P' S T where PTrans: "Ψ ⊗ ΨR ⊳ !P ⟼K((p ∙ N)) ≺ P'" and "(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel"
and "(Ψ ⊗ ΨR, (p ∙ Q'), S ∥ !Q) ∈ Rel" and "(Ψ ⊗ ΨR, S, T) ∈ Rel"
and suppT: "((supp T)::name set) ⊆ supp P'" and suppS: "((supp S)::name set) ⊆ supp(p ∙ Q')"
by(drule_tac cSym) (auto dest: Der cExt)
note ‹Ψ ⊗ ΨR ⊗ ΨQ ⊨ M ↔ K›
ultimately have "Ψ ⊳ R ∥ !P ⟼τ ≺ (ν*(p ∙ xvec))((p ∙ R') ∥ P')"
using PTrans FrR ‹ΨQ = SBottom'› ‹(p ∙ xvec) ♯* P› ‹AR ♯* Ψ› ‹AR ♯* R› ‹AR ♯* M› ‹AR ♯* P›
by(rule_tac Comm2) (assumption | simp)+
moreover from ‹AR' ♯* P› ‹AR' ♯* Q› ‹AR' ♯* N› S ‹xvec ♯* AR'› ‹(p ∙ xvec) ♯* AR'› PTrans QTrans ‹distinctPerm p› have "AR' ♯* P'" and "AR' ♯* Q'"
apply -
apply(drule_tac inputFreshChainDerivative, auto)
apply(subst pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst, symmetric, of _ _ p], simp)
by(force dest: inputFreshChainDerivative)+
from ‹xvec ♯* P› ‹(p ∙ xvec) ♯* N› PTrans ‹distinctPerm p› have "(p ∙ xvec) ♯* (p ∙ P')"
apply(drule_tac inputFreshChainDerivative, simp)
apply(subst pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst, symmetric, of _ _ p], simp)
by(subst pt_fresh_star_bij[OF pt_name_inst, OF at_name_inst, symmetric, of _ _ p], simp)
{
from ‹(Ψ ⊗ ΨR, P', T ∥ !P) ∈ Rel› have "(p ∙ (Ψ ⊗ ΨR), (p ∙ P'), p ∙ (T ∥ !P)) ∈ Rel"
by(rule Closed)
with ‹xvec ♯* Ψ› ‹(p ∙ xvec) ♯* Ψ› ‹xvec ♯* P› ‹(p ∙ xvec) ♯* P› S have "(Ψ ⊗ (p ∙ ΨR), p ∙ P', (p ∙ T) ∥ !P) ∈ Rel"
by(simp add: eqvts)
hence "((Ψ ⊗ (p ∙ ΨR)) ⊗ Ψ', p ∙ P', (p ∙ T) ∥ !P) ∈ Rel" by(rule cExt)
with ‹(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', (p ∙ P'), (p ∙ T) ∥ !P) ∈ Rel"
by(metis Associativity StatEq compositionSym)
with FrR' ‹AR' ♯* Ψ› ‹AR' ♯* P'› ‹AR' ♯* P› ‹xvec ♯* AR'› ‹(p ∙ xvec) ♯* AR'› S ‹distinctPerm p› suppT
have "(Ψ, R' ∥ (p ∙ P'), R' ∥ ((p ∙ T) ∥ !P)) ∈ Rel"
apply(rule_tac FrameParPres)
apply(assumption | simp add: freshChainSimps)+
by(auto simp add: fresh_star_def fresh_def)
hence "(Ψ, R' ∥ (p ∙ P'), (R' ∥ (p ∙ T)) ∥ !P) ∈ Rel" by(blast intro: Assoc Trans)
with ‹xvec ♯* Ψ› ‹xvec ♯* P› have "(Ψ, (ν*xvec)(R' ∥ (p ∙ P')), ((ν*xvec)(R' ∥ (p ∙ T))) ∥ !P) ∈ Rel"
by(metis ResPres psiFreshVec ScopeExt Trans)
hence "(Ψ, (ν*(p ∙ xvec))((p ∙ R') ∥ P'), ((ν*xvec)(R' ∥ (p ∙ T))) ∥ !P) ∈ Rel"
using ‹(p ∙ xvec) ♯* R'› ‹(p ∙ xvec) ♯* (p ∙ P')› S ‹distinctPerm p›
apply(erule_tac rev_mp) by(subst resChainAlpha[of p]) auto
moreover from ‹(Ψ, P, Q) ∈ Rel› ‹guarded P› ‹guarded Q› have "(Ψ, ((ν*xvec)(R' ∥ (p ∙ T))) ∥ !P, ((ν*xvec)(R' ∥ (p ∙ T))) ∥ !Q) ∈ Rel'"
by(rule C1)
moreover from ‹(Ψ ⊗ ΨR, (p ∙ Q'), S ∥ !Q) ∈ Rel› ‹(Ψ ⊗ ΨR, S, T) ∈ Rel› have "(Ψ ⊗ ΨR, (p ∙ Q'), T ∥ !Q) ∈ Rel"
by(blast intro: ParPres Trans)
hence "(p ∙ (Ψ ⊗ ΨR), p ∙ p ∙ Q', p ∙ (T ∥ !Q)) ∈ Rel" by(rule Closed)
with S ‹xvec ♯* Ψ› ‹(p ∙ xvec) ♯* Ψ› ‹xvec ♯* (!Q)› ‹(p ∙ xvec) ♯* Q› ‹distinctPerm p›
have "(Ψ ⊗ (p ∙ ΨR), Q', (p ∙ T) ∥ !Q) ∈ Rel" by(simp add: eqvts)
hence "((Ψ ⊗ (p ∙ ΨR)) ⊗ Ψ', Q', (p ∙ T) ∥ !Q) ∈ Rel" by(rule cExt)
with ‹(p ∙ ΨR) ⊗ Ψ' ≃ ΨR'› have "(Ψ ⊗ ΨR', Q', (p ∙ T) ∥ !Q) ∈ Rel"
by(metis Associativity StatEq compositionSym)
with FrR' ‹AR' ♯* Ψ› ‹AR' ♯* P'› ‹AR' ♯* Q'› ‹AR' ♯* Q› suppT suppS ‹xvec ♯* AR'› ‹(p ∙ xvec) ♯* AR'› S ‹distinctPerm p›
have "(Ψ, R' ∥ Q', R' ∥ ((p ∙ T) ∥ !Q)) ∈ Rel"
apply(rule_tac FrameParPres)
apply(assumption | simp)+
apply(simp add: freshChainSimps)
by(auto simp add: fresh_star_def fresh_def)
hence "(Ψ, R' ∥ Q', (R' ∥ (p ∙ T)) ∥ !Q) ∈ Rel" by(blast intro: Assoc Trans)
with ‹xvec ♯* Ψ› ‹xvec ♯* (!Q)› have "(Ψ, (ν*xvec)(R' ∥ Q'), ((ν*xvec)(R' ∥ (p ∙ T))) ∥ !Q) ∈ Rel"
by(metis ResPres psiFreshVec ScopeExt Trans)
ultimately have "(Ψ, (ν*(p ∙ xvec))((p ∙ R') ∥ P'), (ν*xvec)(R' ∥ Q')) ∈ Rel'" by(blast intro: cSym Compose)
}
ultimately show ?case by blast
qed
qed
unbundle relcomp_syntax
end
end
¤ Diese beiden folgenden Angebotsgruppen bietet das Unternehmen0.15Angebot
(Wie Sie bei der Firma Beratungs- und Dienstleistungen beauftragen können 2026-11-04)
¤
*Eine klare Vorstellung vom Zielzustand
|
|