X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fcomputation%2Facp_cr.ma;h=482349b69d8aa73cb31986b3ebcc0cb44a465d09;hb=2a91f2b3a85bc0e89c942823b741cf243db5875d;hp=3f219ba86843be073438836c9b982709e0dfb894;hpb=65008df95049eb835941ffea1aa682c9253c4c2b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/computation/acp_cr.ma b/matita/matita/contribs/lambdadelta/basic_2/computation/acp_cr.ma
index 3f219ba86..482349b69 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/computation/acp_cr.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/computation/acp_cr.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/notation/relations/ineint_4.ma".
+include "basic_2/notation/relations/ineint_5.ma".
 include "basic_2/grammar/aarity.ma".
 include "basic_2/substitution/gr2_gr2.ma".
 include "basic_2/substitution/lifts_lift_vector.ma".
@@ -22,41 +22,42 @@ include "basic_2/computation/acp.ma".
 (* ABSTRACT COMPUTATION PROPERTIES ******************************************)
 
 (* Note: this is Girard's CR1 *)
-definition S1 ≝ λRP,C:lenv→predicate term.
-                ∀L,T. C L T → RP L T.
+definition S1 ≝ λRP,C:relation3 genv lenv term.
+                ∀G,L,T. C G L T → RP G L T.
 
 (* Note: this is Tait's iii, or Girard's CR4 *)
-definition S2 ≝ λRR:lenv→relation term. λRS:relation term. λRP,C:lenv→predicate term.
-                ∀L,Vs. all … (RP L) Vs →
-                ∀T. 𝐒⦃T⦄ → NF … (RR L) RS T → C L (ⒶVs.T).
+definition S2 ≝ λRR:relation4 genv lenv term term. λRS:relation term. λRP,C:relation3 genv lenv term.
+                ∀G,L,Vs. all … (RP G L) Vs →
+                ∀T. 𝐒⦃T⦄ → NF … (RR G L) RS T → C G L (ⒶVs.T).
 
 (* Note: this generalizes Tait's ii *)
-definition S3 ≝ λC:lenv→predicate term.
-                ∀a,L,Vs,V,T,W. C L (ⒶVs.ⓓ{a}ⓝW.V.T) → C L (ⒶVs.ⓐV.ⓛ{a}W.T).
+definition S3 ≝ λC:relation3 genv lenv term.
+                ∀a,G,L,Vs,V,T,W.
+                C G L (ⒶVs.ⓓ{a}ⓝW.V.T) → C G L (ⒶVs.ⓐV.ⓛ{a}W.T).
 
-definition S4 ≝ λRP,C:lenv→predicate term.
-                ∀L,Vs. all … (RP L) Vs → ∀k. C L (ⒶVs.⋆k).
+definition S4 ≝ λRP,C:relation3 genv lenv term.
+                ∀G,L,Vs. all … (RP G L) Vs → ∀k. C G L (ⒶVs.⋆k).
 
-definition S5 ≝ λC:lenv→predicate term. ∀I,L,K,Vs,V1,V2,i.
-                C L (ⒶVs.V2) → ⇧[0, i + 1] V1 ≡ V2 →
-                ⇩[0, i] L ≡ K.ⓑ{I}V1 → C L (Ⓐ Vs.#i).
+definition S5 ≝ λC:relation3 genv lenv term. ∀I,G,L,K,Vs,V1,V2,i.
+                C G L (ⒶVs.V2) → ⇧[0, i + 1] V1 ≡ V2 →
+                ⇩[0, i] L ≡ K.ⓑ{I}V1 → C G L (ⒶVs.#i).
 
-definition S6 ≝ λRP,C:lenv→predicate term.
-                ∀L,V1s,V2s. ⇧[0, 1] V1s ≡ V2s →
-                ∀a,V,T. C (L.ⓓV) (ⒶV2s.T) → RP L V → C L (ⒶV1s.ⓓ{a}V.T).
+definition S6 ≝ λRP,C:relation3 genv lenv term.
+                ∀G,L,V1s,V2s. ⇧[0, 1] V1s ≡ V2s →
+                ∀a,V,T. C G (L.ⓓV) (ⒶV2s.T) → RP G L V → C G L (ⒶV1s.ⓓ{a}V.T).
 
-definition S7 ≝ λC:lenv→predicate term.
-                ∀L,Vs,T,W. C L (ⒶVs.T) → C L (ⒶVs.W) → C L (ⒶVs.ⓝW.T).
+definition S7 ≝ λC:relation3 genv lenv term.
+                ∀G,L,Vs,T,W. C G L (ⒶVs.T) → C G L (ⒶVs.W) → C G L (ⒶVs.ⓝW.T).
 
-definition S8 ≝ λC:lenv→predicate term. ∀L2,L1,T1,d,e.
-                C L1 T1 → ∀T2. ⇩[d, e] L2 ≡ L1 → ⇧[d, e] T1 ≡ T2 → C L2 T2.
+definition S8 ≝ λC:relation3 genv lenv term. ∀G,L2,L1,T1,d,e.
+                C G L1 T1 → ∀T2. ⇩[d, e] L2 ≡ L1 → ⇧[d, e] T1 ≡ T2 → C G L2 T2.
 
-definition S8s ≝ λC:lenv→predicate term.
-                 ∀L1,L2,des. ⇩*[des] L2 ≡ L1 →
-                 ∀T1,T2. ⇧*[des] T1 ≡ T2 → C L1 T1 → C L2 T2.
+definition S8s ≝ λC:relation3 genv lenv term.
+                 ∀G,L1,L2,des. ⇩*[des] L2 ≡ L1 →
+                 ∀T1,T2. ⇧*[des] T1 ≡ T2 → C G L1 T1 → C G L2 T2.
 
 (* properties of the abstract candidate of reducibility *)
-record acr (RR:lenv->relation term) (RS:relation term) (RP,C:lenv→predicate term) : Prop ≝
+record acr (RR:relation4 genv lenv term term) (RS:relation term) (RP,C:relation3 genv lenv term) : Prop ≝
 { s1: S1 RP C;
   s2: S2 RR RS RP C;
   s3: S3 C;
@@ -68,22 +69,23 @@ record acr (RR:lenv->relation term) (RS:relation term) (RP,C:lenv→predicate te
 }.
 
 (* the abstract candidate of reducibility associated to an atomic arity *)
-let rec aacr (RP:lenv→predicate term) (A:aarity) (L:lenv) on A: predicate term ≝
+let rec aacr (RP:relation3 genv lenv term) (A:aarity) (G:genv) (L:lenv) on A: predicate term ≝
 λT. match A with
-[ AAtom     ⇒ RP L T
-| APair B A ⇒ ∀L0,V0,T0,des. aacr RP B L0 V0 → ⇩*[des] L0 ≡ L → ⇧*[des] T ≡ T0 →
-              aacr RP A L0 (ⓐV0.T0)
+[ AAtom     ⇒ RP G L T
+| APair B A ⇒ ∀L0,V0,T0,des.
+              aacr RP B G L0 V0 → ⇩*[des] L0 ≡ L → ⇧*[des] T ≡ T0 →
+              aacr RP A G L0 (ⓐV0.T0)
 ].
 
 interpretation
    "candidate of reducibility of an atomic arity (abstract)"
-   'InEInt RP L T A = (aacr RP A L T).
+   'InEInt RP G L T A = (aacr RP A G L T).
 
 (* Basic properties *********************************************************)
 
 (* Basic_1: was: sc3_lift1 *)
 lemma acr_lifts: ∀C. S8 C → S8s C.
-#C #HC #L1 #L2 #des #H elim H -L1 -L2 -des
+#C #HC #G #L1 #L2 #des #H elim H -L1 -L2 -des
 [ #L #T1 #T2 #H #HT1
   <(lifts_inv_nil … H) -H //
 | #L1 #L #L2 #des #d #e #_ #HL2 #IHL #T2 #T1 #H #HLT2
@@ -91,19 +93,19 @@ lemma acr_lifts: ∀C. S8 C → S8s C.
 ]
 qed.
 
-lemma rp_lifts: ∀RR,RS,RP. acr RR RS RP (λL,T. RP L T) →
-                ∀des,L0,L,V,V0. ⇩*[des] L0 ≡ L → ⇧*[des] V ≡ V0 →
-                RP L V → RP L0 V0.
-#RR #RS #RP #HRP #des #L0 #L #V #V0 #HL0 #HV0 #HV
+lemma rp_lifts: ∀RR,RS,RP. acr RR RS RP (λG,L,T. RP G L T) →
+                ∀des,G,L0,L,V,V0. ⇩*[des] L0 ≡ L → ⇧*[des] V ≡ V0 →
+                RP G L V → RP G L0 V0.
+#RR #RS #RP #HRP #des #G #L0 #L #V #V0 #HL0 #HV0 #HV
 @acr_lifts /width=6/
 @(s8 … HRP)
 qed.
 
 (* Basic_1: was only: sns3_lifts1 *)
-lemma rp_liftsv_all: ∀RR,RS,RP. acr RR RS RP (λL,T. RP L T) →
-                     ∀des,L0,L,Vs,V0s. ⇧*[des] Vs ≡ V0s → ⇩*[des] L0 ≡ L →
-                     all … (RP L) Vs → all … (RP L0) V0s.
-#RR #RS #RP #HRP #des #L0 #L #Vs #V0s #H elim H -Vs -V0s normalize //
+lemma rp_liftsv_all: ∀RR,RS,RP. acr RR RS RP (λG,L,T. RP G L T) →
+                     ∀des,G,L0,L,Vs,V0s. ⇧*[des] Vs ≡ V0s → ⇩*[des] L0 ≡ L →
+                     all … (RP G L) Vs → all … (RP G L0) V0s.
+#RR #RS #RP #HRP #des #G #L0 #L #Vs #V0s #H elim H -Vs -V0s normalize //
 #T1s #T2s #T1 #T2 #HT12 #_ #IHT2s #HL0 * #HT1 #HT1s
 @conj /2 width=1/ /2 width=6 by rp_lifts/
 qed.
@@ -111,32 +113,32 @@ qed.
 (* Basic_1: was:
    sc3_sn3 sc3_abst sc3_appl sc3_abbr sc3_bind sc3_cast sc3_lift
 *)
-lemma aacr_acr: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
+lemma aacr_acr: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λG,L,T. RP G L T) →
                 ∀A. acr RR RS RP (aacr RP A).
 #RR #RS #RP #H1RP #H2RP #A elim A -A normalize //
 #B #A #IHB #IHA @mk_acr normalize
-[ #L #T #H
-  elim (cp1 … H1RP L) #k #HK
+[ #G #L #T #H
+  elim (cp1 … H1RP G L) #k #HK
   lapply (H ? (⋆k) ? ⟠ ? ? ?) -H
   [1,3: // |2,4: skip
   | @(s2 … IHB … ◊) //
   | #H @(cp3 … H1RP … k) @(s1 … IHA) //
   ]
-| #L #Vs #HVs #T #H1T #H2T #L0 #V0 #X #des #HB #HL0 #H
+| #G #L #Vs #HVs #T #H1T #H2T #L0 #V0 #X #des #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V0s #T0 #HV0s #HT0 #H destruct
   lapply (s1 … IHB … HB) #HV0
   @(s2 … IHA … (V0 @ V0s)) /2 width=4 by lifts_simple_dx/ /3 width=6/
-| #a #L #Vs #U #T #W #HA #L0 #V0 #X #des #HB #HL0 #H
+| #a #G #L #Vs #U #T #W #HA #L0 #V0 #X #des #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V0s #Y #HV0s #HY #H destruct
   elim (lifts_inv_flat1 … HY) -HY #U0 #X #HU0 #HX #H destruct
   elim (lifts_inv_bind1 … HX) -HX #W0 #T0 #HW0 #HT0 #H destruct
   @(s3 … IHA … (V0 @ V0s)) /5 width=5/
-| #L #Vs #HVs #k #L0 #V0 #X #hdes #HB #HL0 #H
+| #G #L #Vs #HVs #k #L0 #V0 #X #hdes #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V0s #Y #HV0s #HY #H destruct
   >(lifts_inv_sort1 … HY) -Y
   lapply (s1 … IHB … HB) #HV0
   @(s4 … IHA … (V0 @ V0s)) /3 width=6/
-| #I #L #K #Vs #V1 #V2 #i #HA #HV12 #HLK #L0 #V0 #X #des #HB #HL0 #H
+| #I #G #L #K #Vs #V1 #V2 #i #HA #HV12 #HLK #L0 #V0 #X #des #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V0s #Y #HV0s #HY #H destruct
   elim (lifts_inv_lref1 … HY) -HY #i0 #Hi0 #H destruct
   elim (ldrops_ldrop_trans … HL0 … HLK) #X #des0 #i1 #HL02 #H #Hi1 #Hdes0
@@ -146,7 +148,7 @@ lemma aacr_acr: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
   elim (lifts_lift_trans  … Hdes0 … HVW1 … HW12) // -Hdes0 -Hi0 #V3 #HV13 #HVW2
   >(lift_mono … HV13 … HV12) in HVW2; -V3 #HVW2
   @(s5 … IHA … (V0 @ V0s) … HW12 HL02) /3 width=4/
-| #L #V1s #V2s #HV12s #a #V #T #HA #HV #L0 #V10 #X #des #HB #HL0 #H
+| #G #L #V1s #V2s #HV12s #a #V #T #HA #HV #L0 #V10 #X #des #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V10s #Y #HV10s #HY #H destruct
   elim (lifts_inv_bind1 … HY) -HY #V0 #T0 #HV0 #HT0 #H destruct
   elim (lift_total V10 0 1) #V20 #HV120
@@ -158,7 +160,7 @@ lemma aacr_acr: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
     elim (liftsv_liftv_trans_le … HV10s … HV120s) -V10s #V10s #HV10s #HV120s
     >(liftv_mono … HV12s … HV10s) -V1s //
   ]
-| #L #Vs #T #W #HA #HW #L0 #V0 #X #des #HB #HL0 #H
+| #G #L #Vs #T #W #HA #HW #L0 #V0 #X #des #HB #HL0 #H
   elim (lifts_inv_applv1 … H) -H #V0s #Y #HV0s #HY #H destruct
   elim (lifts_inv_flat1 … HY) -HY #W0 #T0 #HW0 #HT0 #H destruct
   @(s7 … IHA … (V0 @ V0s)) /3 width=4/
@@ -166,13 +168,13 @@ lemma aacr_acr: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
 ]
 qed.
 
-lemma aacr_abst: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λL,T. RP L T) →
-                 ∀a,L,W,T,A,B. ⦃L, W⦄ ϵ[RP] 〚B〛 → (
+lemma aacr_abst: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λG,L,T. RP G L T) →
+                 ∀a,G,L,W,T,A,B. ⦃G, L, W⦄ ϵ[RP] 〚B〛 → (
                     ∀L0,V0,W0,T0,des. ⇩*[des] L0 ≡ L → ⇧*[des ] W ≡ W0 → ⇧*[des + 1] T ≡ T0 →
-                                   ⦃L0, V0⦄ ϵ[RP] 〚B〛 → ⦃L0, W0⦄ ϵ[RP] 〚B〛 → ⦃L0.ⓓⓝW0.V0, T0⦄ ϵ[RP] 〚A〛
+                                   ⦃G, L0, V0⦄ ϵ[RP] 〚B〛 → ⦃G, L0, W0⦄ ϵ[RP] 〚B〛 → ⦃G, L0.ⓓⓝW0.V0, T0⦄ ϵ[RP] 〚A〛
                  ) →
-                 ⦃L, ⓛ{a}W.T⦄ ϵ[RP] 〚②B.A〛.
-#RR #RS #RP #H1RP #H2RP #a #L #W #T #A #B #HW #HA #L0 #V0 #X #des #HB #HL0 #H
+                 ⦃G, L, ⓛ{a}W.T⦄ ϵ[RP] 〚②B.A〛.
+#RR #RS #RP #H1RP #H2RP #a #G #L #W #T #A #B #HW #HA #L0 #V0 #X #des #HB #HL0 #H
 lapply (aacr_acr … H1RP H2RP A) #HCA
 lapply (aacr_acr … H1RP H2RP B) #HCB
 elim (lifts_inv_bind1 … H) -H #W0 #T0 #HW0 #HT0 #H destruct