| validrefs(str, r ' + refs0, st[r -- _type] .type, st), r ≠ jvmref ∨ _type ≠ sk ⊦ ¬ r ∈ refs0 ∧ ¬ dups(refs0), (dups(refs0) ∨ r ∈ refs0) ∧ validrefs(str, r ' + refs0, (st[jvmref -- sk, val][r -- _type]) .type, st) |
⊦ validrefs(str, jvmref ' + refs, ty, st) ↔ refs = []
⊦ ¬ validrefs(str, r ' + refs, st[r -- _type] .type, st) → ¬ validrefs(str, r ' + refs, ty, st)
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ≠ r0 → (st[r0 -- sk0, val][r -- sk]) = st[r -- sk]])]]