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Proof step 43 from proof validrefs-maxlen (previous step)

# st .refs < # acc, validrefs(str, r ' + acc, ty, st), ∀ str0, ty0, st0. validrefs(str0, acc, ty0, st0) → # acc ≤ # st0 .refs + 1 ⊦ acc = [], r ∈ acc, dups(acc)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ r = jvmref → (validrefs(str, r ' + refs, ty, st) ↔ refs = [])
Proof step 42:
r ≠ jvmref, # st .refs < # acc, validrefs(str, r ' + acc, ty, st), ∀ str0, ty0, st0. validrefs(str0, acc, ty0, st0) → # acc ≤ # st0 .refs + 1 ⊦ acc = [], r ∈ acc, dups(acc)

Rule argument

[crewrite-arg: validrefs-null , F , [st, ty, refs, r, str] → [st, ty, acc, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, acc, r, str)]]