⊦ (⌜bv0⌝ → (bv ⊃ P0;P1)) = (bv0 → bv ⊃ ⌜bv0⌝ → P0;⌜true⌝ → P1)
Used simplifier rules: ite: ⊦ ite(bv, P0, P1) = (bv ⊃ P0;P1);