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Proof step 1 from proof lls (conclusion)

⊦ n ≠ 0 → ¬ n < 2^ log2 n

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
n < 2^ log2 n ⊦ n = 0

Rule argument

Additional information

Used simplifier rules: zero: ⊦ 2^ n ≠ 0;%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic1