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Proof step 50 from proof junkrefs-put-null-02 (conclusion)

⊦ ¬ junkrefs(str, refs, ty, st) ∧ r ≠ jvmref ∧ is_reftype(st[r -- _type] .type .type) → ¬ junkrefs(str, refs, ty, st[r -- i ', refval(jvmref)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 49:
is_reftype(st[r -- _type] .type .type), junkrefs(str, refs, ty, st[r -- i ', refval(jvmref)]) ⊦ r = jvmref, junkrefs(str, refs, ty, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]