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Proof step 5 from proof junkrefs-junkref (conclusion)

⊦ ¬ junkref(str, r, st) → (junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ↔ false)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ⊦ junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]