| st[r -- fs '] .refval = jvmref, is_obj(str, r, st), is_referencevalue(st[r -- fs ']), fs ' ∈ instfields(st[r -- _type] .type .class) ⊦ r = jvmref, r ' + jvmref ' ≠ [] ∧ (r ' + jvmref ') .first = r ∧ (r ' + jvmref ') .last = jvmref ∧ validrefs(str, r ' + jvmref ', st[(r ' + jvmref ') .first -- _type] .type, st) |
st[r -- fs '] .refval = jvmref, is_obj(str, r, st), is_referencevalue(st[r -- fs ']), fs ' ∈ instfields(st[r -- _type] .type .class) ⊦ r = jvmref, validrefs(str, r ' + jvmref ', st[r -- _type] .type, st)
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + r ') .last = r], [CSIMPSEQ : ⊦ (r ' + refs) .first = r], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ' ≠ []], [CSIMPSEQ : ⊦ ¬ refs + refs0 ≠ [] ↔ refs = [] ∧ refs0 = []])]]