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Proof step 18 from proof validrefkeynotnull-put-byteval (previous step)

is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']), rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st) ⊦ mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, validrefvalnotnull(str, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk], ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
validrefvalnotnull(str, st[rk], ty, st), rk ∈ st, is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ r = jvmref, mkfs(class, byte_type, fieldvar) ' = _length, validrefvalnotnull(str, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk], ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]