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Proof step 32 from proof validrefs-has-null (conclusion)

⊦ jvmref ∈ refs ∧ refs0 ≠ [] → ¬ validrefs(str, refs + refs0, ty, st)

User applied rule structural induction

And obtained the following new goals

Proof step 31:
∀ refs0, str, ty, st. jvmref ∈ acc ∧ refs0 ≠ [] → ¬ validrefs(str, acc + refs0, ty, st) ⊦ jvmref ∈ r + acc ∧ refs0 ≠ [] → ¬ validrefs(str, (r + acc) + refs0, ty, st)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;], [CSIMPSEQ : ⊦ [] + refs = refs], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ ¬ r ∈ []])]]