| validrefs(str, r ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ refs0 = [], path∃(str, r, (r ' + refs0) .last, st[jvmref -- sk, val]) |
validrefs(str, r ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ refs0 = [], path∃(str, r, refs0 .last, st[jvmref -- sk, val])
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ refs ≠ [] → (r ' + refs) .last = refs .last])]]