- Category error(as used in logic and philosophy of language)
- A logical mistake where you apply a rule or concept to something it doesn't actually fit, like using a math formula on a poem.
- Event types(ontology of events)
- Categories or kinds of events that share common features—like 'running' or 'falling' as general types, rather than one specific instance of running.
- Ontological kinds(as the categories being discussed as stabilized)
- Categories of what exists or what is real; basically, the different types of things philosophers and scientists say are fundamental to reality.
- Ontology(Carnap argues this enterprise is based on a mistake)
- The philosophical discipline that tries to answer hard questions about what there really is.
- Primitive universals(metaphysics)
- Basic, fundamental properties or qualities that exist independently and aren't built from simpler parts—the ground-level building blocks of reality.
- Representational structure(epistemology and philosophy of mind)
- The way ideas, words, or thoughts are organized to stand for or represent things in the world.
- inference(Nyāya epistemology)
- A component of epistemology in Nyāya philosophy; a veritable inference yields knowledge about the world and must have premises that are themselves known
- propositional structure(Introduced as a convenient label for the kind of structure truth-makers must possess.)
- Structure, syntactic or quasi-syntactic, of the same general kind possessed by declarative sentences, thoughts, and propositions.