(* Properties about sn parallel unfold **************************************)
lemma snv_ltpss_sn_conf: ∀h,g,L1,L2,d,e. L1 ⊢ ▶* [d, e] L2 →
- â\88\80T. â¦\83h, L1â¦\84 â\8a© T :[g] â\86\92 â¦\83h, L2â¦\84 â\8a© T :[g].
+ â\88\80T. â¦\83h, L1â¦\84 â\8a¢ T ¡[g] â\86\92 â¦\83h, L2â¦\84 â\8a¢ T ¡[g].
#h #g #L1 #L2 #d #e #H
lapply (ltpss_sn_ltpssa … H) -H #H @(ltpssa_ind … H) -L2 //
#L #L2 #_ #HL2 #IHL1 #T1 #HT1