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Proof step 5 from proof fillsgn-fix (previous step)

# bytes < n, 0 ≤ bytes2int(bytes) ⊦ fillsgn(n, bytes) = fix(n, bytes)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 6:
⊦ # bytes < n ∧ 0 ≤ bytes2int(bytes) → fillsgn(n, bytes) = mklist(i2b(0), n - # bytes) + bytes
Proof step 7:
# bytes < n ∧ 0 ≤ bytes2int(bytes), # bytes < n, 0 ≤ bytes2int(bytes) ⊦ mklist(i2b(0), n - # bytes) + bytes = fix(n, bytes)

Rule argument

name: fillsgn-pos rotate: F subst: [bytes, n] → [bytes, n]

Additional information

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