elim (lsubsv_drop_O1_trans … HL12 … HLK2) -L2 #X #H #HLK1
elim (lsubsv_inv_pair2 … H) -H * #K1
[ #HK12 #H destruct /3 width=5 by snv_lref/
- | #W #l #HVW #_ #_ #_ #_ #H1 #H2 destruct -IHV
+ | #W #d #HVW #_ #_ #_ #_ #H1 #H2 destruct -IHV
/3 width=6 by shnv_inv_snv, snv_lref/
]
| #a #I #G #L2 #V #T #_ #_ #IHV #IHT #L1 #HL12 destruct
/4 width=1 by snv_bind, lsubsv_pair/
-| #a #G #L2 #V #W0 #T #U0 #l #_ #_ #HVW0 #HTU0 #IHV #IHT #L1 #HL12
+| #a #G #L2 #V #W0 #T #U0 #d #_ #_ #HVW0 #HTU0 #IHV #IHT #L1 #HL12
elim (lsubsv_scpds_trans … HVW0 … HL12) -HVW0 #V0 #HV0 #HWV0
elim (lsubsv_scpds_trans … HTU0 … HL12) -HTU0 #X #HT0 #H
elim (cprs_inv_abst1 … H) -H #W #T0 #HW0 #_ #H destruct