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Proof step 4 from proof int2bytes-one (previous step)

# int2bytes(i) = 1 ⊦ ¬ i < ~128 ∧ ¬ 127 < i, ¬ i < 0 ∧ ¬ 127 < i

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
~128 ≤ i, i < 128 ⊦ int2bytes((* i)) = i2b(i) '
Proof step 6:
¬(~128 ≤ i ∧ i < 128), # int2bytes(i) = 1 ⊦ ¬ i < ~128 ∧ ¬ 127 < i, ¬ i < 0 ∧ ¬ 127 < i

Rule argument

name: int2bytes-byte rotate: F subst: [i] → [i]

Additional information

Used simplifier rules: ⊦ # by ' = 0 +1;% ⊦ i ≤ j → (¬ ¬ j < i ↔ false);%i + 1 = i0 ⊦ j < (* i0) → ¬ (* i) < j; Used terms: i