| ⊦ ¬ path∃(str, r, r0, st) ∧ ¬ junkref(str, r, st) ∧ sk ≠ _type → (cyclic(str, r, st[r0 -- sk, val]) ↔ cyclic(str, r, st)) |
⊦ sk = _type, cyclic(str, r, st[r0 -- sk, val]) ↔ cyclic(str, r, st), path∃(str, r, r0, st), junkref(str, r, st)
[[CONCRETESIMPRULES : ()]]