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Proof step 31 from proof int2bytes-len-ls-01 (previous step)

# int2bits(i) = 1, 2 ^ (n→i(n) * 8 - 1) ≤ i, 0 < i ⊦ n = 0, i = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 32:
⊦ 0 ≤ i → (# int2bits(i) = 1 ↔ i = 0)

Rule argument

seq: ⊦ 0 ≤ i → (# int2bits(i) = 1 ↔ i = 0) subst: [i] → [i] rotate: F spec: int2bits inst: name: int2bits-len-one

Additional information

Used simplifier rules: ⊦ ¬ i ≤ j ↔ j < i;% ⊦ i < j → ¬ j < i; Used terms: i