conv => rhs; change (bitwise bne (bitwise and l m) (bitwise and l n)).getBit i
case a
l m n i : Nat
⊢ getBit (bitwise and l (bitwise bne m n)) i = getBit (l &&& m ^^^ l &&& n) i
case a
l m n i : Nat
⊢ getBit (bitwise and l (bitwise bne m n)) i = getBit (bitwise bne (bitwise and l m) (bitwise and l n)) i