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Proof step 42 from proof unchNorec-isarray (previous step)

unchangedNorec(r, st, st0), is_array(r, st) ⊦ r ≠ jvmref ∧ r -- _type ∈ st0 ∧ is_typevalue(st0[r -- _type]) ∧ is_arraytype(st0[r -- _type] .type) ∧ okarray(r, st0[r -- _type] .type .type, st0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 41:
unchangedNorec(r, st, st0), is_array(r, st) ⊦ r = jvmref, okarray(r, st0[r -- _type] .type .type, st0) ∧ is_arraytype(st0[r -- _type] .type) ∧ is_typevalue(st0[r -- _type]) ∧ r -- _type ∈ st0

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_array(jvmref, st)])]]