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Proof step 1 from proof no-leading-zero-04 (conclusion)

⊦ b2i(by) < 0 → int2bytes(i) ≠ i2b(~1) ' + by ' + bytes

User applied rule induction

And obtained the following new goals

Proof step 2:
true, ∀ bytes, by, i0. i→n(i0) < i→n(i) → true → b2i(by) < 0 → int2bytes(i0) ≠ i2b(~1) ' + by ' + bytes ⊦ b2i(by) < 0 → int2bytes(i) ≠ i2b(~1) ' + by ' + bytes

Rule argument

indvar: i→n(i) wfpred: <

Additional information

Used simplifier rules: <; (wellfounded) Used terms: i→n(i)