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Proof step 8 from proof no-leading-zero (previous step)

int2bytes(bytes2int(i2b(0) ' + by ' + bytes)) = i2b(0) ' + by ' + bytes, 0 ≤ b2i(by), ∀ by, bytes0. # bytes0 < # bytes → int2bytes(bytes2int(i2b(0) ' + by ' + bytes0)) = i2b(0) ' + by ' + bytes0 ∧ 0 ≤ b2i(by) → false ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 9:
bytes = [], int2bytes(bytes2int(i2b(0) ' + by ' + bytes)) = i2b(0) ' + by ' + bytes, 0 ≤ b2i(by), ∀ by, bytes0. # bytes0 < # bytes → int2bytes(bytes2int(i2b(0) ' + by ' + bytes0)) = i2b(0) ' + by ' + bytes0 ∧ 0 ≤ b2i(by) → false ⊦
Proof step 15:
int2bytes(bytes2int(i2b(0) ' + by ' + bytes)) = i2b(0) ' + by ' + bytes, 0 ≤ b2i(by), ∀ by, bytes0. # bytes0 < # bytes → int2bytes(bytes2int(i2b(0) ' + by ' + bytes0)) = i2b(0) ' + by ' + bytes0 ∧ 0 ≤ b2i(by) → false ⊦ bytes = []

Rule argument

fma: bytes = []

Additional information

Used formulas: bytes = []