| (r1 ' + refs1) .last = (r ' + refs0) .last, r1 -- _type ∈ st, validrefs(str, r ' + refs0, st1[r -- _type] .type, st1), validrefs(str, r1 ' + refs1, st[r1 -- _type] .type, st), newref(r, st), st ⊆ st1, r1 ∈ st ⊦ (r ' + refs0) .last = jvmref, r = jvmref, r1 = r, path∃(str, r, (r ' + refs0) .last, st1), junkref(str, r1, st) |
⊦ ¬ path∃(str, r, r0, st) ∧ r0 ∈ refs → ¬ validrefs(str, r ' + refs, ty, st)
¬ (¬ path∃(str, r, (r ' + refs0) .last, st1) ∧ (r ' + refs0) .last ∈ refs0), (r1 ' + refs1) .last = (r ' + refs0) .last, r1 -- _type ∈ st, validrefs(str, r ' + refs0, st1[r -- _type] .type, st1), validrefs(str, r1 ' + refs1, st[r1 -- _type] .type, st), newref(r, st), st ⊆ st1, r1 ∈ st ⊦ (r ' + refs0) .last = jvmref, r = jvmref, r1 = r, path∃(str, r, (r ' + refs0) .last, st1), junkref(str, r1, st)
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, r, (r ' + refs0) .last, st1, refs0, st1[r -- _type] .type)]]