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Proof step 22 from proof validrefkeynotnull-put-byteval (previous step)

fs = mkfs(class, ty0, fieldvar), ty0 = byte_type, is_bytevalue(st[r -- fs ']), validrefkeynotnull(str, rk, ty, st) ⊦ fs ' = _type, fs ' = _length, r = jvmref, validrefkeynotnull(str, rk, ty, st[r -- fs ', byteval(by)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']), validrefkeynotnull(str, rk, ty, st) ⊦ mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, validrefkeynotnull(str, rk, ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ mkfs(class1, byte_type, fieldvar) ' ≠ _type])]]