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Proof step 2 from proof validref-bytearray-level (conclusion)

⊦ validref(str, r, mkarraytype(byte_type), st) ↔ validref(str0, r, mkarraytype(byte_type), st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ ¬ validref(str, r, mkarraytype(byte_type), st) → ¬ validref(str0, r, mkarraytype(byte_type), st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]