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Proof step 63 from proof validrefs-junkrefs-01 (previous step)

junkrefs(str, refs + refs0, ty, st) ⊦ junkrefs(str, refs, ty, st), validrefs(str, refs, ty, st)

User applied rule structural induction

And obtained the following new goals

Proof step 1:
⊦ validrefs(str, [], ty, st)
Proof step 62:
∀ str, refs0, ty, st. junkrefs(str, acc + refs0, ty, st) → junkrefs(str, acc, ty, st) ∨ validrefs(str, acc, ty, st), junkrefs(str, (r + acc) + refs0, ty, st) ⊦ junkrefs(str, r + acc, ty, st), validrefs(str, r + acc, ty, st)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;], [CSIMPSEQ : ⊦ [] + refs = refs], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ ¬ junkrefs(str, [], ty, st)])]]