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Proof step 32 from proof rightshift-8-01-01 (previous step)

i < 0, # int2bytes(i) ≤ i→n(j) ⊦ j = 0, i >> 8 * j = bytes2int(mklist(i2b(~1), # int2bytes(i)))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 33:
⊦ n ≠ 0 → bytes2int(mklist(i2b(~1), n)) = ~1
Proof step 34:
# int2bytes(i) ≠ 0, i < 0, # int2bytes(i) ≤ i→n(j) ⊦ j = 0, i >> 8 * j = ~1

Rule argument

name: bytes2int-mklist-mones rotate: F subst: [n] → [# int2bytes(i)]

Additional information

Used simplifier rules: int2bytes-empty: ⊦ int2bytes(i) ≠ [];% ⊦ # bytes = 0 ↔ bytes = []; Used terms: # int2bytes(i)