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Proof step 49 from proof isarray-put-array-badindex (previous step)

st[r0 -- _type] .type = mkarraytype(ty), i < 0, r0 -- _type ∈ st, is_typevalue(st[r0 -- _type]), is_arraytype(st[r0 -- _type] .type), r0 ∈ st ⊦ r0 = jvmref, okarray(r0, ty, st[r -- i ', val]) ↔ okarray(r0, ty, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 48:
st[r0 -- _type] .type = mkarraytype(ty), r0 ∈ st, is_typevalue(st[r0 -- _type]), r0 -- _type ∈ st, i < 0 ⊦ okarray(r0, ty, st[r -- i ', val]) ↔ okarray(r0, ty, st), r0 = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : javatype, , test-09, ⊦ is_arraytype(mkarraytype(ty))])]]