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Proof step 16 from proof extension (previous step)

bytevalues(getarray(r, i + 1, i1, st)) = bytevalues(getarray(r0, i0 + 1, i2, st0)) ↔ 0 = i1 ∧ 0 = i2 ∨ i1 = i2 ∧ (∀ j. ¬ j < 0 ∧ ¬ i2 ≤ j → st[r -- ((i + 1) + j) '] .byteval = st0[r0 -- ((i0 + 1) + j) '] .byteval), 0 ≤ i1, 0 ≤ i2, ∀ st0, j0, i0, r0, st, i, r, j1. i→n(j1) < i→n(i1 + 1) → ( true → ( bytevalues(getarray(r, i, j1, st)) = bytevalues(getarray(r0, i0, j0, st0)) ↔ j1 = j0 ∧ (∀ j1. 0 ≤ j1 ∧ j1 < j0 → st[r -- (i + j1) '] .byteval = st0[r0 -- (i0 + j1) '] .byteval) ∧ ¬ j0 < 0 ∨ ¬ 0 < j1 ∧ ¬ 0 < j0)) ⊦ st[r -- i '] .byteval = st0[r0 -- i0 '] .byteval ∧ bytevalues(getarray(r, i + 1, i1, st)) = bytevalues(getarray(r0, i0 + 1, i2, st0)) ↔ (∀ j. j ≤ i2 ∧ 0 ≤ j → st[r -- (i + j) '] .byteval = st0[r0 -- (i0 + j) '] .byteval) ∧ i1 = i2

User applied rule case distinction

And obtained the following new goals

Rule argument

[CASEDARG : pos: right 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]