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Proof step 24 from proof isarray-put-field (previous step)

⊦ fs ' = _length, fs ' = _type, r ≠ jvmref ∧ r -- _type ∈ st[r0 -- fs ', val] ∧ is_typevalue(st[r -- _type]) ∧ is_arraytype(st[r -- _type] .type) ∧ okarray(r, st[r -- _type] .type .type, st[r0 -- fs ', val]) ↔ r ≠ jvmref ∧ r -- _type ∈ st ∧ is_typevalue(st[r -- _type]) ∧ is_arraytype(st[r -- _type] .type) ∧ okarray(r, st[r -- _type] .type .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 23:
is_typevalue(st[r -- _type]), is_arraytype(st[r -- _type] .type) ⊦ fs ' = _length, fs ' = _type, r -- _type ∈ st[r0 -- fs ', val] ∧ okarray(r, st[r -- _type] .type .type, st[r0 -- fs ', val]) ↔ r -- _type ∈ st ∧ okarray(r, st[r -- _type] .type .type, st), r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]