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Proof step 12 from proof bytes2int-fillsgn-zero (previous step)

b2i(by) = 0 ⊦ fillsgn(1, i2b(0) ') = by '

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 13:
⊦ # bytes ≥ n → fillsgn(n, bytes) = bytes

Rule argument

name: fillsgn-longer rotate: F subst: [bytes, n] → [i2b(0) ', 1]

Additional information

Used simplifier rules: ⊦ # by ' = 0 +1;% ⊦ by ' = by0 ' ↔ by = by0;% ⊦ b2i(by) = i → (i2b(i) ≠ by ↔ false); Used terms: i2b(0) ', 1