| junkref(str, r, st) ⊦ r = jvmref, junkref(str, r, st[jvmref -- sk, val]) |
⊦ junkref(str, r, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st))
∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st) ⊦ r = jvmref, junkref(str, r, st[jvmref -- sk, val])
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r, str)]]