 If an idea has exactly one object, it is called singular, and, if has more than one, general (§68). Some general ideas are complex, e.g., [star of the first magnitude]. Others, Bolzano maintains, are simple: he thinks that [object] and [attribute] are likely such. In the case of singular ideas, similarly, he holds that some are complex, e.g., [the most massive planet in our solar system], while others are simple. Appropriating Kant’s term for his own purposes, he calls the latter kind of ideas, that is, simple, singular ideas, intuitions (§72). Ideas that are not intuitions and do not have any intuitions among their parts are called (pure) concepts, while ideas that have both concepts and intuitions among their parts are called mixed (§73).