What is the principle of abstractionism?
In a conceptual abstraction principle, the abstraction operator takes, not an object or sequence of objects, but a concept (or relation, or a sequence of concepts and relations, and so forth) as its argument.
In a conceptual abstraction principle, the abstraction operator takes, not an object or sequence of objects, but a concept (or relation, or a sequence of concepts and relations, and so forth) as its argument.
