Definition: In mathematics, an "immanental" object is a mathematical object that can be expressed as an algebraic combination of other objects. This means that it has a form that involves addition and multiplication in its definition rather than subtraction or division. Immanuel Kant, one of the most famous philosophers of the 19th century, famously stated that "The only true philosophy is the philosophical philosophy" (into which this concept can be applied), suggesting that mathematical objects should be considered as immanental