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Proof step 5 from proof band-011x-is-unsigned-fix-01 (previous step)

0 ≤ i0 ⊦ band(j, 2 ^ i0 - 1) = bits2uint(fix(i→n(i0), int2bits(j)))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 6:
⊦ 0 < i → band(j, 2 ^ i - 1) = bits2uint(fix(i→n(i), int2bits(j)))
Proof step 7:
¬ 0 < i0, 0 ≤ i0 ⊦ band(j, 2 ^ i0 - 1) = bits2uint(fix(i→n(i0), int2bits(j)))

Rule argument

name: band-011x-is-unsigned-fix rotate: F subst: [i, j] → [i0, j]

Additional information

Used terms: i0, j