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15 include "basic_2/dynamic/snv_ltpss_sn.ma".
16 include "basic_2/dynamic/snv_cpr_ssta.ma".
18 (* STRATIFIED NATIVE VALIDITY FOR TERMS *************************************)
20 (* Properties on context-free parallel reduction for closures ***************)
22 axiom snv_ltpr_tpr_aux: ∀h,g,n. (
23 ∀L1,T1. ♯{L1, T1} < n →
24 ∀U1,l. ⦃h, L1⦄ ⊢ T1 •[g, l] U1 →
25 ∀L2. L1 ➡ L2 → ∀T2. T1 ➡ T2 → ⦃h, L1⦄ ⊩ T1 :[g] →
26 ∃∃U2. ⦃h, L2⦄ ⊢ T2 •[g, l] U2 & ⦃L1, U1⦄ ⬌* ⦃L2, U2⦄
28 ∀L1,T1. ♯{L1, T1} < n → ⦃h, L1⦄ ⊩ T1 :[g] →
29 ∀L2. L1 ➡ L2 → ∀T2. ⦃h, L2⦄ ⊢ T1 •*➡*[g] T2 → ⦃h, L2⦄ ⊩ T2 :[g]
31 ∀L1,T1. ♯{L1, T1} = n → ⦃h, L1⦄ ⊩ T1 :[g] →
32 ∀L2. L1 ➡ L2 → ∀T2. T1 ➡ T2 → ⦃h, L2⦄ ⊩ T2 :[g].
34 #h #g #n #IH2 #IH1 #L1 * * [||||*]
35 [ #k #Hn #H1 #L2 #_ #X #H2 destruct -IH2 -IH1 -L1
36 >(tpr_inv_atom1 … H2) -X //
37 | #i #Hn #H1 #L2 #HL12 #X #H2 destruct -IH2
38 elim (snv_inv_lref … H1) -H1 #I #K1 #V1 #HLK1 #HV1
39 >(tpr_inv_atom1 … H2) -X
40 elim (ltpr_ldrop_conf … HLK1 … HL12) -HL12 #X #H #HLK2
41 elim (ltpr_inv_pair1 … H) -H #K2 #V2 #HK12 #HV12 #H destruct
42 lapply (ldrop_pair2_fwd_fw … HLK1 (#i)) -HLK1 #HLK1
43 lapply (IH1 … HV1 … HK12 V2 ?) -IH1 -HV1 -HK12 //
44 [ @cprs_dxprs /3 width=1/ (**) (* auto: /4 width=1/ fails *)
46 | #p #Hn #H1 #L2 #HL12 #X #H2 destruct -IH2
47 elim (snv_inv_gref … H1)
48 | #a #I #V1 #T1 #Hn #H1 #L2 #HL12 #X #H2 destruct -IH2
49 elim (snv_inv_bind … H1) -H1 #HV1 #HT1
50 elim (tpr_inv_bind1 … H2) -H2 *
51 [ #V2 #T0 #T2 #HV12 #HT10 #HT02 #H destruct
52 lapply (tps_lsubs_trans … HT02 (L2.ⓑ{I}V2) ?) -HT02 /2 width=1/ #HT02
53 lapply (cpr_intro (L2.ⓑ{I}V2) … T2 0 1 HT10 ?) -HT10 /2 width=1/ -HT02 #HT12
54 lapply (IH1 … HV1 … HL12 V2 ?) -HV1 //
55 [ @cprs_dxprs /3 width=1/ (**) (* auto: /4 width=1/ fails *)
57 lapply (IH1 … HT1 (L2.ⓑ{I}V2) … T2 ?) -IH1 -HT1 /3 width=1/
58 | #T2 #HT12 #HXT2 #H1 #H2 destruct
59 lapply (IH1 … HT1 (L2.ⓓV1) … T2 ?) -IH1 -HT1 // /2 width=2/
60 [ @cprs_dxprs /3 width=1/ (**) (* auto: /4 width=1/ fails *)
62 lapply (snv_inv_lift … HT2 L2 … HXT2) -T2 // /2 width=1/
64 | #V1 #T1 #Hn #H1 #L2 #HL12 #X #H2 destruct
65 elim (snv_inv_appl … H1) -H1 #a #W10 #W1 #U1 #l #HV1 #HT1 #HVW1 #HW10 #HTU1
66 elim (tpr_inv_appl1 … H2) -H2 *
67 [ #V2 #T2 #HV12 #HT12 #H destruct
68 lapply (IH1 … HV1 … HL12 V2 ?)
69 [ @cprs_dxprs /3 width=1/ (**) (* auto: /4 width=1/ fails *)
72 lapply (IH1 … HT1 … HL12 T2 ?)
73 [ @cprs_dxprs /3 width=1/ (**) (* auto: /4 width=1/ fails *)
76 lapply (IH1 … HT1 … HTU1) -IH1 // #H
77 elim (snv_inv_bind … H) -H #HW1 #HU1
78 elim (IH2 … HVW1 … HL12 … HV12 HV1) -IH2 -HVW1 -HV12 -HV1 // #W2 #HVW2 #HW12
79 lapply (fpcs_canc_sn L1 L1 … W10 W1 … HW12) -HW12 /3 width=1/ -W10 #HW12
80 @(snv_appl … HV2 HT2 HVW2)
83 fact snv_cpr_aux: ∀h,g,n. (
84 ∀L1,T1. ♯{L1, T1} < n →
85 ∀U1,l. ⦃h, L1⦄ ⊢ T1 •[g, l] U1 →
86 ∀L2. ⦃L1⦄ ➡ ⦃L2⦄ → ∀T2. L2 ⊢ T1 ➡ T2 → ⦃h, L1⦄ ⊩ T1 :[g] →
87 ∃∃U2. ⦃h, L2⦄ ⊢ T2 •[g, l] U2 & ⦃L1, U1⦄ ⬌* ⦃L2, U2⦄
89 ∀L1,T1. ♯{L1, T1} < n → ⦃h, L1⦄ ⊩ T1 :[g] →
90 ∀L2. ⦃L1⦄ ➡ ⦃L2⦄ → ∀T2. ⦃h, L2⦄ ⊢ T1 •*➡*[g] T2 → ⦃h, L2⦄ ⊩ T2 :[g]
92 ∀L1,T1. ♯{L1, T1} = n → ⦃h, L1⦄ ⊩ T1 :[g] →
93 ∀T2. L1 ⊢ T1 ➡ T2 → ⦃h, L1⦄ ⊩ T2 :[g].
94 #h #g #n #IH2 #IH1 #L1 #T1 #Hn #HT1 #T2 * #T0 #HT10 #HT02
95 lapply (snv_ltpr_tpr_aux … Hn HT1 … HT10) -Hn -HT1 -HT10 [ // | skip | /3 width=6/ | /3 width=5/ ] -n -T1 #HT0
96 lapply (snv_tpss_conf … HT0 … HT02) -T0 //
99 fact snv_lfpr_aux: ∀h,g,n. (
100 ∀L1,T1. ♯{L1, T1} < n →
101 ∀U1,l. ⦃h, L1⦄ ⊢ T1 •[g, l] U1 →
102 ∀L2. ⦃L1⦄ ➡ ⦃L2⦄ → ∀T2. L2 ⊢ T1 ➡ T2 → ⦃h, L1⦄ ⊩ T1 :[g] →
103 ∃∃U2. ⦃h, L2⦄ ⊢ T2 •[g, l] U2 & ⦃L1, U1⦄ ⬌* ⦃L2, U2⦄
105 ∀L1,T1. ♯{L1, T1} < n → ⦃h, L1⦄ ⊩ T1 :[g] →
106 ∀L2. ⦃L1⦄ ➡ ⦃L2⦄ → ∀T2. ⦃h, L2⦄ ⊢ T1 •*➡*[g] T2 → ⦃h, L2⦄ ⊩ T2 :[g]
108 ∀L1,T1. ♯{L1, T1} = n → ⦃h, L1⦄ ⊩ T1 :[g] →
109 ∀L2. ⦃L1⦄ ➡ ⦃L2⦄ → ⦃h, L2⦄ ⊩ T1 :[g].
110 #h #g #n #IH2 #IH1 #L1 #T1 #Hn #HT1 #L2 * #L #HL1 #HL2
111 lapply (snv_ltpr_tpr_aux … Hn HT1 … HL1 ??) -Hn -HT1 -HL1 [ // | skip | /3 width=6/ | /3 width=5/ ] -n -L1 #HT1
112 lapply (snv_ltpss_sn_conf … HL2 … HT1) -L //