| ⊦ ¬ junkref(str0, r, st) ∧ same-subclasses-contains(st[r -- _type] .type .jtelemtype .class, str, str0) → ¬ junkref(str, r, st) |
same-subclasses-contains(st[r -- _type] .type .jtelemtype .class, str, str0), junkref(str, r, st) ⊦ junkref(str0, r, st)
[[CONCRETESIMPRULES : ()]]