lemma fpbs_ind:
∀G1,L1,T1. ∀Q:relation3 genv lenv term. Q G1 L1 T1 →
- (â\88\80G,G2,L,L2,T,T2. â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG,L,Tâ\9d« â\86\92 â\9dªG,L,Tâ\9d« â\89½ â\9dªG2,L2,T2â\9d« → Q G L T → Q G2 L2 T2) →
- â\88\80G2,L2,T2. â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d« → Q G2 L2 T2.
+ (â\88\80G,G2,L,L2,T,T2. â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G,L,Tâ\9d© â\86\92 â\9d¨G,L,Tâ\9d© â\89½ â\9d¨G2,L2,T2â\9d© → Q G L T → Q G2 L2 T2) →
+ â\88\80G2,L2,T2. â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d© → Q G2 L2 T2.
/3 width=8 by tri_TC_star_ind/ qed-.
lemma fpbs_ind_dx:
∀G2,L2,T2. ∀Q:relation3 genv lenv term. Q G2 L2 T2 →
- (â\88\80G1,G,L1,L,T1,T. â\9dªG1,L1,T1â\9d« â\89½ â\9dªG,L,Tâ\9d« â\86\92 â\9dªG,L,Tâ\9d« â\89¥ â\9dªG2,L2,T2â\9d« → Q G L T → Q G1 L1 T1) →
- â\88\80G1,L1,T1. â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d« → Q G1 L1 T1.
+ (â\88\80G1,G,L1,L,T1,T. â\9d¨G1,L1,T1â\9d© â\89½ â\9d¨G,L,Tâ\9d© â\86\92 â\9d¨G,L,Tâ\9d© â\89¥ â\9d¨G2,L2,T2â\9d© → Q G L T → Q G1 L1 T1) →
+ â\88\80G1,L1,T1. â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d© → Q G1 L1 T1.
/3 width=8 by tri_TC_star_ind_dx/ qed-.
(* Advanced properties ******************************************************)
(* Properties with plus-iterated structural successor for closures **********)
lemma fqup_fpbs:
- â\88\80G1,G2,L1,L2,T1,T2. â\9dªG1,L1,T1â\9d« â¬\82+ â\9dªG2,L2,T2â\9d« â\86\92 â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d«.
+ â\88\80G1,G2,L1,L2,T1,T2. â\9d¨G1,L1,T1â\9d© â¬\82+ â\9d¨G2,L2,T2â\9d© â\86\92 â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d©.
#G1 #G2 #L1 #L2 #T1 #T2 #H @(fqup_ind … H) -G2 -L2 -T2
/4 width=5 by fqu_fquq, fquq_fpb, tri_step/
qed.
lemma fpbs_fqup_trans:
- â\88\80G1,G,L1,L,T1,T. â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG,L,Tâ\9d« →
- â\88\80G2,L2,T2. â\9dªG,L,Tâ\9d« â¬\82+ â\9dªG2,L2,T2â\9d« â\86\92 â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d«.
+ â\88\80G1,G,L1,L,T1,T. â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G,L,Tâ\9d© →
+ â\88\80G2,L2,T2. â\9d¨G,L,Tâ\9d© â¬\82+ â\9d¨G2,L2,T2â\9d© â\86\92 â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d©.
#G1 #G #L1 #L #T1 #T #H1 #G2 #L2 #T2 #H @(fqup_ind … H) -G2 -L2 -T2
/3 width=5 by fpbs_strap1, fqu_fpb/
qed-.
lemma fqup_fpbs_trans:
- â\88\80G,G2,L,L2,T,T2. â\9dªG,L,Tâ\9d« â\89¥ â\9dªG2,L2,T2â\9d« →
- â\88\80G1,L1,T1. â\9dªG1,L1,T1â\9d« â¬\82+ â\9dªG,L,Tâ\9d« â\86\92 â\9dªG1,L1,T1â\9d« â\89¥ â\9dªG2,L2,T2â\9d«.
+ â\88\80G,G2,L,L2,T,T2. â\9d¨G,L,Tâ\9d© â\89¥ â\9d¨G2,L2,T2â\9d© →
+ â\88\80G1,L1,T1. â\9d¨G1,L1,T1â\9d© â¬\82+ â\9d¨G,L,Tâ\9d© â\86\92 â\9d¨G1,L1,T1â\9d© â\89¥ â\9d¨G2,L2,T2â\9d©.
#G #G2 #L #L2 #T #T2 #H1 #G1 #L1 #T1 #H @(fqup_ind_dx … H) -G1 -L1 -T1
/3 width=9 by fpbs_strap2, fqu_fpb/
qed-.
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