| #f2 #I #L1 #L2 #_ #IHL #J #K #H elim (IHL … H) -IHL
/3 width=7 by after_next, ex3_2_intro, drops_drop/
| #f2 #I1 #I2 #L1 #L2 #HL #_ #_ #J #K #H destruct
- lapply (after_isid_dx ð\9d\90\88ð\9d\90\9d … f2) /3 width=9 by after_push, ex3_2_intro, drops_drop/
+ lapply (after_isid_dx ð\9d\90¢ … f2) /3 width=9 by after_push, ex3_2_intro, drops_drop/
]
qed-.