lemma cpys_subst: ∀I,G,L,K,V,U1,i,d,e.
d ≤ yinj i → i < d + e →
- â\87©[i] L ≡ K.ⓑ{I}V → ⦃G, K⦄ ⊢ V ▶*[0, ⫰(d+e-i)] U1 →
- â\88\80U2. â\87§[0, i+1] U1 ≡ U2 → ⦃G, L⦄ ⊢ #i ▶*[d, e] U2.
+ â¬\87[i] L ≡ K.ⓑ{I}V → ⦃G, K⦄ ⊢ V ▶*[0, ⫰(d+e-i)] U1 →
+ â\88\80U2. â¬\86[0, i+1] U1 ≡ U2 → ⦃G, L⦄ ⊢ #i ▶*[d, e] U2.
#I #G #L #K #V #U1 #i #d #e #Hdi #Hide #HLK #H @(cpys_ind … H) -U1
[ /3 width=5 by cpy_cpys, cpy_subst/
| #U #U1 #_ #HU1 #IHU #U2 #HU12
lemma cpys_subst_Y2: ∀I,G,L,K,V,U1,i,d.
d ≤ yinj i →
- â\87©[i] L ≡ K.ⓑ{I}V → ⦃G, K⦄ ⊢ V ▶*[0, ∞] U1 →
- â\88\80U2. â\87§[0, i+1] U1 ≡ U2 → ⦃G, L⦄ ⊢ #i ▶*[d, ∞] U2.
+ â¬\87[i] L ≡ K.ⓑ{I}V → ⦃G, K⦄ ⊢ V ▶*[0, ∞] U1 →
+ â\88\80U2. â¬\86[0, i+1] U1 ≡ U2 → ⦃G, L⦄ ⊢ #i ▶*[d, ∞] U2.
#I #G #L #K #V #U1 #i #d #Hdi #HLK #HVU1 #U2 #HU12
@(cpys_subst … HLK … HU12) >yminus_Y_inj //
qed.
lemma cpys_inv_atom1: ∀I,G,L,T2,d,e. ⦃G, L⦄ ⊢ ⓪{I} ▶*[d, e] T2 →
T2 = ⓪{I} ∨
∃∃J,K,V1,V2,i. d ≤ yinj i & i < d + e &
- â\87©[i] L ≡ K.ⓑ{J}V1 &
+ â¬\87[i] L ≡ K.ⓑ{J}V1 &
⦃G, K⦄ ⊢ V1 ▶*[0, ⫰(d+e-i)] V2 &
- â\87§[O, i+1] V2 ≡ T2 &
+ â¬\86[O, i+1] V2 ≡ T2 &
I = LRef i.
#I #G #L #T2 #d #e #H @(cpys_ind … H) -T2
[ /2 width=1 by or_introl/
lemma cpys_inv_lref1: ∀G,L,T2,i,d,e. ⦃G, L⦄ ⊢ #i ▶*[d, e] T2 →
T2 = #i ∨
∃∃I,K,V1,V2. d ≤ i & i < d + e &
- â\87©[i] L ≡ K.ⓑ{I}V1 &
+ â¬\87[i] L ≡ K.ⓑ{I}V1 &
⦃G, K⦄ ⊢ V1 ▶*[0, ⫰(d+e-i)] V2 &
- â\87§[O, i+1] V2 ≡ T2.
+ â¬\86[O, i+1] V2 ≡ T2.
#G #L #T2 #i #d #e #H elim (cpys_inv_atom1 … H) -H /2 width=1 by or_introl/
* #I #K #V1 #V2 #j #Hdj #Hjde #HLK #HV12 #HVT2 #H destruct /3 width=7 by ex5_4_intro, or_intror/
qed-.
lemma cpys_inv_lref1_Y2: ∀G,L,T2,i,d. ⦃G, L⦄ ⊢ #i ▶*[d, ∞] T2 →
T2 = #i ∨
- â\88\83â\88\83I,K,V1,V2. d â\89¤ i & â\87©[i] L ≡ K.ⓑ{I}V1 &
- â¦\83G, Kâ¦\84 â\8a¢ V1 â\96¶*[0, â\88\9e] V2 & â\87§[O, i+1] V2 ≡ T2.
+ â\88\83â\88\83I,K,V1,V2. d â\89¤ i & â¬\87[i] L ≡ K.ⓑ{I}V1 &
+ â¦\83G, Kâ¦\84 â\8a¢ V1 â\96¶*[0, â\88\9e] V2 & â¬\86[O, i+1] V2 ≡ T2.
#G #L #T2 #i #d #H elim (cpys_inv_lref1 … H) -H /2 width=1 by or_introl/
* >yminus_Y_inj /3 width=7 by or_intror, ex4_4_intro/
qed-.
lemma cpys_inv_lref1_drop: ∀G,L,T2,i,d,e. ⦃G, L⦄ ⊢ #i ▶*[d, e] T2 →
- â\88\80I,K,V1. â\87©[i] L ≡ K.ⓑ{I}V1 →
- â\88\80V2. â\87§[O, i+1] V2 ≡ T2 →
+ â\88\80I,K,V1. â¬\87[i] L ≡ K.ⓑ{I}V1 →
+ â\88\80V2. â¬\86[O, i+1] V2 ≡ T2 →
∧∧ ⦃G, K⦄ ⊢ V1 ▶*[0, ⫰(d+e-i)] V2
& d ≤ i
& i < d + e.
(* Properties on relocation *************************************************)
lemma cpys_lift_le: ∀G,K,T1,T2,dt,et. ⦃G, K⦄ ⊢ T1 ▶*[dt, et] T2 →
- â\88\80L,U1,s,d,e. dt + et â\89¤ yinj d â\86\92 â\87©[s, d, e] L ≡ K →
- â\87§[d, e] T1 â\89¡ U1 â\86\92 â\88\80U2. â\87§[d, e] T2 ≡ U2 →
+ â\88\80L,U1,s,d,e. dt + et â\89¤ yinj d â\86\92 â¬\87[s, d, e] L ≡ K →
+ â¬\86[d, e] T1 â\89¡ U1 â\86\92 â\88\80U2. â¬\86[d, e] T2 ≡ U2 →
⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2.
#G #K #T1 #T2 #dt #et #H #L #U1 #s #d #e #Hdetd #HLK #HTU1 @(cpys_ind … H) -T2
[ #U2 #H >(lift_mono … HTU1 … H) -H //
lemma cpys_lift_be: ∀G,K,T1,T2,dt,et. ⦃G, K⦄ ⊢ T1 ▶*[dt, et] T2 →
∀L,U1,s,d,e. dt ≤ yinj d → d ≤ dt + et →
- â\87©[s, d, e] L â\89¡ K â\86\92 â\87§[d, e] T1 ≡ U1 →
- â\88\80U2. â\87§[d, e] T2 ≡ U2 → ⦃G, L⦄ ⊢ U1 ▶*[dt, et + e] U2.
+ â¬\87[s, d, e] L â\89¡ K â\86\92 â¬\86[d, e] T1 ≡ U1 →
+ â\88\80U2. â¬\86[d, e] T2 ≡ U2 → ⦃G, L⦄ ⊢ U1 ▶*[dt, et + e] U2.
#G #K #T1 #T2 #dt #et #H #L #U1 #s #d #e #Hdtd #Hddet #HLK #HTU1 @(cpys_ind … H) -T2
[ #U2 #H >(lift_mono … HTU1 … H) -H //
| -HTU1 #T #T2 #_ #HT2 #IHT #U2 #HTU2
qed-.
lemma cpys_lift_ge: ∀G,K,T1,T2,dt,et. ⦃G, K⦄ ⊢ T1 ▶*[dt, et] T2 →
- â\88\80L,U1,s,d,e. yinj d â\89¤ dt â\86\92 â\87©[s, d, e] L ≡ K →
- â\87§[d, e] T1 â\89¡ U1 â\86\92 â\88\80U2. â\87§[d, e] T2 ≡ U2 →
+ â\88\80L,U1,s,d,e. yinj d â\89¤ dt â\86\92 â¬\87[s, d, e] L ≡ K →
+ â¬\86[d, e] T1 â\89¡ U1 â\86\92 â\88\80U2. â¬\86[d, e] T2 ≡ U2 →
⦃G, L⦄ ⊢ U1 ▶*[dt+e, et] U2.
#G #K #T1 #T2 #dt #et #H #L #U1 #s #d #e #Hddt #HLK #HTU1 @(cpys_ind … H) -T2
[ #U2 #H >(lift_mono … HTU1 … H) -H //
(* Inversion lemmas for relocation ******************************************)
lemma cpys_inv_lift1_le: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
dt + et ≤ d →
- â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, et] T2 & â\87§[d, e] T2 ≡ U2.
+ â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, et] T2 & â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hdetd @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
qed-.
lemma cpys_inv_lift1_be: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
dt ≤ d → yinj d + e ≤ dt + et →
- â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, et - e] T2 & â\87§[d, e] T2 ≡ U2.
+ â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, et - e] T2 & â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hdtd #Hdedet @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
qed-.
lemma cpys_inv_lift1_ge: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
yinj d + e ≤ dt →
- â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt - e, et] T2 & â\87§[d, e] T2 ≡ U2.
+ â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt - e, et] T2 & â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hdedt @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
(* Advanced inversion lemmas on relocation **********************************)
lemma cpys_inv_lift1_ge_up: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
d ≤ dt → dt ≤ yinj d + e → yinj d + e ≤ dt + et →
∃∃T2. ⦃G, K⦄ ⊢ T1 ▶*[d, dt + et - (yinj d + e)] T2 &
- â\87§[d, e] T2 ≡ U2.
+ â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hddt #Hdtde #Hdedet @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
qed-.
lemma cpys_inv_lift1_be_up: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
dt ≤ d → dt + et ≤ yinj d + e →
- â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, d - dt] T2 & â\87§[d, e] T2 ≡ U2.
+ â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, d - dt] T2 & â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hdtd #Hdetde @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
qed-.
lemma cpys_inv_lift1_le_up: ∀G,L,U1,U2,dt,et. ⦃G, L⦄ ⊢ U1 ▶*[dt, et] U2 →
- â\88\80K,s,d,e. â\87©[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â\87§[d, e] T1 ≡ U1 →
+ â\88\80K,s,d,e. â¬\87[s, d, e] L â\89¡ K â\86\92 â\88\80T1. â¬\86[d, e] T1 ≡ U1 →
dt ≤ d → d ≤ dt + et → dt + et ≤ yinj d + e →
- â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, d - dt] T2 & â\87§[d, e] T2 ≡ U2.
+ â\88\83â\88\83T2. â¦\83G, Kâ¦\84 â\8a¢ T1 â\96¶*[dt, d - dt] T2 & â¬\86[d, e] T2 ≡ U2.
#G #L #U1 #U2 #dt #et #H #K #s #d #e #HLK #T1 #HTU1 #Hdtd #Hddet #Hdetde @(cpys_ind … H) -U2
[ /2 width=3 by ex2_intro/
| -HTU1 #U #U2 #_ #HU2 * #T #HT1 #HTU
qed-.
lemma cpys_inv_lift1_subst: ∀G,L,W1,W2,d,e. ⦃G, L⦄ ⊢ W1 ▶*[d, e] W2 →
- â\88\80K,V1,i. â\87©[i+1] L â\89¡ K â\86\92 â\87§[O, i+1] V1 ≡ W1 →
+ â\88\80K,V1,i. â¬\87[i+1] L â\89¡ K â\86\92 â¬\86[O, i+1] V1 ≡ W1 →
d ≤ yinj i → i < d + e →
- â\88\83â\88\83V2. â¦\83G, Kâ¦\84 â\8a¢ V1 â\96¶*[O, â«°(d+e-i)] V2 & â\87§[O, i+1] V2 ≡ W2.
+ â\88\83â\88\83V2. â¦\83G, Kâ¦\84 â\8a¢ V1 â\96¶*[O, â«°(d+e-i)] V2 & â¬\86[O, i+1] V2 ≡ W2.
#G #L #W1 #W2 #d #e #HW12 #K #V1 #i #HLK #HVW1 #Hdi #Hide
elim (cpys_inv_lift1_ge_up … HW12 … HLK … HVW1 ? ? ?) //
>yplus_O1 <yplus_inj >yplus_SO2