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Proof step 21 from proof putBar-rew (previous step)

∃ i. sk = i ', j < i ∨ i + n→i(# bytes) ≤ j ⊦ sk = j ', (putByteArray(bytes, r, i, st)[r -- sk]) = (putByteArray(bytes, r, i, st[r -- j ', val])[r -- sk])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
j < i ∨ i + n→i(# bytes) ≤ j ⊦ (putByteArray(bytes, r, i, st)[r -- i0 ']) = (putByteArray(bytes, r, i, st[r -- j ', val])[r -- i0 ']), i0 = j

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ' = i0 ' ↔ i = i0])]]