| ∀ st. fits(jvmref, sks0, st) → sks0 = [], fits(jvmref, sk + sks0, st) ⊦ sk + sks0 = [] |
fits(jvmref, sk ' + sks0, st), (∃ st. fits(jvmref, sks0, st)) → sks0 = [] ⊦
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (sks + sks0) + sks1 = sks + sks0 + sks1], [CSIMPSEQ : ⊦ sk ' + sks ≠ []], [CSIMPSEQ : ⊦ sk + sks = sk ' + sks])]]