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Proof step 15 from proof junkrefs-primarray (previous step)

st[r -- _type] .type = mkarraytype(ty0), is_arraytype(st[r -- _type] .type), ty0 ≤ ty, is_primtype(ty), is_array(str, r, st) ⊦ r = jvmref, junkrefs(str, r ' + refs, mkarraytype(ty), st) ↔ ¬ okarray(r, ty, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
st[r -- _type] .type = mkarraytype(ty0), r ∈ st, junkrefs(str, r ' + refs, mkarraytype(ty), st), okarray(r, ty, st), is_array(str, r, st), is_primtype(ty), ty0 ≤ ty ⊦ r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_arraytype(mkarraytype(ty))], [CSIMPFORWARD : ⊦ okarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st], [CSIMPSEQ : ⊦ ¬ okarray(r, ty, st) ∧ st[r -- _type] .type = mkarraytype(ty0) ∧ ty0 ≤ ty → ¬ is_array(str, r, st)])]]