- â\88\80b,f,G,L1,K1. â¬\87*[b,f] L1 ≘ K1 → ∀K2. G ⊢ K1 ⫃[RP] K2 →
- â\88\83â\88\83L2. G â\8a¢ L1 â«\83[RP] L2 & â¬\87*[b,f] L2 ≘ K2.
+ â\88\80b,f,G,L1,K1. â\87©*[b,f] L1 ≘ K1 → ∀K2. G ⊢ K1 ⫃[RP] K2 →
+ â\88\83â\88\83L2. G â\8a¢ L1 â«\83[RP] L2 & â\87©*[b,f] L2 ≘ K2.