-lemma lsuba_drops_conf_isuni: ∀G,L1,L2. G ⊢ L1 ⫃⁝ L2 →
- â\88\80b,f,K1. ð\9d\90\94â¦\83fâ¦\84 â\86\92 â¬\87*[b,f] L1 ≘ K1 →
- â\88\83â\88\83K2. G â\8a¢ K1 â«\83â\81\9d K2 & â¬\87*[b,f] L2 ≘ K2.
+lemma lsuba_drops_conf_isuni: ∀G,L1,L2. G ⊢ L1 ⫃⁝ L2 →
+ â\88\80b,f,K1. ð\9d\90\94â\9dªfâ\9d« â\86\92 â\87©*[b,f] L1 ≘ K1 →
+ â\88\83â\88\83K2. G â\8a¢ K1 â«\83â\81\9d K2 & â\87©*[b,f] L2 ≘ K2.