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Proof step 26 from proof int2bytes-le255 (previous step)

# uint2bits(i) = 9, 127 < i, i ≤ 255, 0 < i, 0 ≤ i, 128 ≤ i, i < 256 ⊦ bits2bytes(uint2bits(i).first ') + i2b(bits2int(uint2bits(i).rest)) ' = i2b(0) ' + i2b(i - 256) '

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 27:
⊦ 0 ≤ i → ¬ uint2bits(i).first
Proof step 28:
0 ≤ i, # uint2bits(i) = 9, 127 < i, i ≤ 255, 0 < i, 0 ≤ i, 128 ≤ i, i < 256 ⊦ bits2bytes(false ') + i2b(bits2int(uint2bits(i).rest)) ' = i2b(0) ' + i2b(i - 256) '

Rule argument

seq: ⊦ 0 ≤ i → ¬ uint2bits(i).first subst: [i] → [i] rotate: F spec: int2bits inst: name: uint2bits-first

Additional information

Used terms: i