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Proof step 1 from proof ushort-pos-02 (conclusion)

⊦ ~65536 ≤ i ∧ i < 0 → us2i(i2s(i)) = i + 65536

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
~65536 ≤ i, i < 0 ⊦ us2i(i2s(i)) = i + 65536

Rule argument

Additional information

Used simplifier rules: ⊦ i ≤ j ∧ j < j0 → i < j0; (forward)% ⊦ j < i ∧ i ≤ 0 → j < 0; (forward)