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Proof step 2 from proof int2bytes-len-def (previous step)

⊦ # int2bytes(i) = 1 + (# int2bits(i) - 1) / 8

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ # int2bits(i) % 8 = 0 → # int2bytes(i) = # int2bits(i) / 8
Proof step 4:
# int2bits(i) % 8 ≠ 0 ⊦ # int2bytes(i) = 1 + (# int2bits(i) - 1) / 8
Proof step 15:
# int2bits(i) % 8 = 0 ⊦ # int2bits(i) / 8 = 1 + (# int2bits(i) - 1) / 8

Rule argument

name: int2bytes-len-fits rotate: F subst: [i] → [i]

Additional information

Used terms: i