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