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Proof step 42 from proof junkrefs-levelsubset (previous step)

level⊆(str, str0), junkrefs(str0, r ' + acc, ty, st), ∀ str, str0, ty, st. level⊆(str, str0) ∧ junkrefs(str0, acc, ty, st) → junkrefs(str, acc, ty, st) ⊦ junkrefs(str, r ' + acc, ty, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ r = jvmref → ¬ junkrefs(str, r ' + refs, ty, st)
Proof step 41:
r ≠ jvmref, level⊆(str, str0), junkrefs(str0, r ' + acc, ty, st), ∀ str, str0, ty, st. level⊆(str, str0) ∧ junkrefs(str0, acc, ty, st) → junkrefs(str, acc, ty, st) ⊦ junkrefs(str, r ' + acc, ty, st)

Rule argument

[crewrite-arg: junkrefs-null , F , [st, ty, refs, r, str] → [st, ty, acc, r, str0] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, acc, r, str0)]]