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Proof step 43 from proof junkrefs-levelsubset (previous step)

∀ 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)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 42:
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

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r + refs = r ' + refs])]]