| true ∈ bits ⊦ bits = [], bits0 = [], boolvar ∈ bitsor(sgn(bits), bits0) ↔ boolvar ∈ bitsor(bits, bits0), true ∈ bits ∧ false ∈ bits |
true ∈ bits ⊦ bits = [], bits0 = [], boolvar ∈ bitsor(true ', bits0) ↔ boolvar ∈ bitsor(bits, bits0), false ∈ bits
Used simplifier rules: ⊦ ¬ false ∈ bits ∧ bits ≠ [] → sgn(bits) = true ';