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Proof step 5 from proof validref-array-03 (previous step)

str ≠ `java.lang.Object' ⊦ is_array(str0, r, st) → ¬ validref(str0, r, mkclasstype(str .class), st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
is_array(str0, r, st), validref(str0, r, mkclasstype(str .class), st) ⊦ str = `java.lang.Object'

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]