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Proof step 7 from proof okbytearray (conclusion)

⊦ ¬ okbytearray(st[rk] .refval, st) → ¬ validrefkeynotnull(str, rk, mkarraytype(byte_type), st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
validrefkeynotnull(str, rk, mkarraytype(byte_type), st) ⊦ okbytearray(st[rk] .refval, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]