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Proof step 44 from proof junkrefs-levelsubset (previous step)

level⊆(str, str0), junkrefs(str0, refs, ty, st) ⊦ junkrefs(str, refs, ty, st)

User applied rule structural induction

And obtained the following new goals

Proof step 1:
⊦ ¬ junkrefs(str, [], ty, st)
Proof step 43:
∀ str, str0, ty, st. level⊆(str, str0) ∧ junkrefs(str0, acc, ty, st) → junkrefs(str, acc, ty, st), level⊆(str, str0), junkrefs(str0, r + acc, ty, st) ⊦ junkrefs(str, r + acc, ty, st)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;])]]