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Proof step 20 from proof getbar-subset (previous step)

r -- _length ∈ st, okarray(r, byte_type, st), st ⊆ st0, j < st[r -- _length] .intval, r ∈ st, 0 ≤ j, 0 < st[r -- _length] .intval ⊦ noval .byteval = st0[r -- j '] .byteval, r -- j ' ∈ st

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
⊦ st ⊆ st0 ∧ okarray(r, ty, st) → okarray(r, ty, st0)
Proof step 8:
⊦ okarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st
Proof step 9:
⊦ okarray(r, ty, st) ∧ st ⊆ st0 → okarray(r, ty, st0)
Proof step 19:
r ∈ st, 0 < st[r -- _length] .intval, 0 ≤ j, j < st[r -- _length] .intval, st ⊆ st0, okarray(r, byte_type, st), r -- _length ∈ st ⊦ r = jvmref, noval .byteval = st0[r -- j '] .byteval, r -- j ' ∈ st

Rule argument

[emptyarg]

Additional information

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