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Proof step 4 from proof band-011x-is-lastn (previous step)

i→n(i) = # int2bits(j), 0 < i ⊦ band(j, 2 ^ i - 1) = bits2uint(int2bits(j))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ i→n(i) = # int2bits(j) ∧ 0 < i → band(j, 2 ^ i - 1) = bits2uint(int2bits(j))

Rule argument

name: band-011x-is-unsigned-03 rotate: F subst: [i, j] → [i, j]

Additional information

Used simplifier rules: ⊦ ¬ i < j ↔ j ≤ i;% ⊦ i < j → (¬ ¬ j ≤ i ↔ false); Used terms: i, j