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Proof step 33 from proof validrefs-not-in (previous step)

r ∈ refs, validrefs(str, refs, ty, st) ⊦ r = jvmref, is_valid_ref(r, st) ∧ type∃(str, st[r -- _type] .type)

User applied rule structural induction

And obtained the following new goals

Proof step 32:
∀ r, str, ty, st. r ∈ acc ∧ validrefs(str, acc, ty, st) → r = jvmref ∨ is_valid_ref(r, st) ∧ type∃(str, st[r -- _type] .type), r ∈ r0 + acc, validrefs(str, r0 + acc, ty, st) ⊦ r = jvmref, is_valid_ref(r, st) ∧ type∃(str, st[r -- _type] .type)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;], [CSIMPSEQ : ⊦ ¬ r ∈ []])]]