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Proof step 5 from proof validref-put-statfield (previous step)

r = jvmref ∨ (st[jvmref -- sk, val][r -- _type]) .type ≤ ty1 ∧ ¬ junkref(str, r, st[jvmref -- sk, val]) ⊦ r = jvmref ∨ st[r -- _type] .type ≤ ty1 ∧ ¬ junkref(str, r, st), r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
st[r -- _type] .type ≤ ty1, junkref(str, r, st) ⊦ r = jvmref, junkref(str, r, st[jvmref -- sk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r ≠ r0 → (st[r0 -- sk0, val][r -- sk]) = st[r -- sk]])]]