- elim (llpr_inv_lref_ge_dx … HL12 … HLK2) -L2
- /5 width=7 by cprs_delta, cprs_strap2, llpr_cpr_conf/
-| #a #I #G #L2 #V1 #V2 #T1 #T2 #_ #_ #IHV12 #IHT12 #L1 #HL12
- elim (llpr_inv_bind_O … HL12) -HL12 /4 width=1 by cprs_bind/
-| #I #G #L2 #V1 #V2 #T1 #T2 #_ #_ #IHV12 #IHT12 #L1 #HL12
- elim (llpr_inv_flat … HL12) -HL12 /3 width=1 by cprs_flat/
-| #G #L2 #V2 #T1 #T #T2 #_ #HT2 #IHT1 #L1 #HL12
- elim (llpr_inv_bind_O … HL12) /3 width=3 by cprs_zeta/
-| #G #L2 #V2 #T1 #T2 #HT12 #IHT12 #L1 #HL12
- elim (llpr_inv_flat … HL12) /3 width=1 by cprs_tau/
-| #a #G #L2 #V1 #V2 #W1 #W2 #T1 #T2 #_ #_ #_ #IHV12 #IHW12 #IHT12 #L1 #HL12
- elim (llpr_inv_flat … HL12) -HL12 #HV1 #HL12
- elim (llpr_inv_bind_O … HL12) /3 width=3 by cprs_beta/
-| #a #G #L2 #V1 #V #V2 #W1 #W2 #T1 #T2 #_ #HV2 #_ #_ #IHV1 #IHW12 #IHT12 #L1 #HL12
- elim (llpr_inv_flat … HL12) -HL12 #HV1 #HL12
- elim (llpr_inv_bind_O … HL12) /3 width=3 by cprs_theta/
+ elim (lpr_drop_trans_O1 … HL12 … HLK2) -L2 #X #HLK1 #H
+ elim (lpr_inv_pair2 … H) -H #K1 #V1 #HK12 #HV10 #H destruct
+ /4 width=6 by cprs_strap2, cprs_delta/
+|3,7: /4 width=1 by lpr_pair, cprs_bind, cprs_beta/
+|4,6: /3 width=1 by cprs_flat, cprs_eps/
+|5,8: /4 width=3 by lpr_pair, cprs_zeta, cprs_theta, cprs_strap1/