The problem being addressed is the role of higher order concepts play in the general system of our conceptual network. It is approached from an externalist perspective within the philosophy of language, and can be reworded as the inquiry about the significance of concepts that do not apply to objects or sets of objects in the world. Theses concepts are “higher-order” because they apply to other concepts and conceptual complexes. Examples of higher order concept in the sense relevant for EMEHOC are: truth, logical constants, quantifiers, epistemic modals, and evaluative concepts. Negation and conditionals are the paradigm of logical constants; quantifiers are any expression of quantity (“all”, “none”, “most”, “at least four”, “an infinite number”); the standard epistemic modals are “know” and “believe”; standard evaluative concepts are “good”, “bad”, “correct”, “wrong” and the like. What all these concepts have in common from the point of view of their significance is that they do not represent aspects of the observable reality around. By contrast, concepts such as triangular, tall, solid, material, jump, eat, or fight allegedly describe features of the outer world. The standard representationalist view on meaning has it easier to explain the meaning of these concepts and the role they play in our conceptual life than to explain the role of concepts such as believe or wrong, which are EMEHOC’s concern.
According to EMEHOC, the significance of concepts is their contribution to the propositions which are the contents of assertive speech acts. Addressing the complex issue of the significance on higher order concepts requires to invade the terrain of some of the most recalcitrant semantic and metaphysic problems philosophers have had to deal with. EMEHOC amounts in practice to a paradigm shifting that, if successful, will expose the weaknesses of the representationalist approached and show the way out from some of its most intractatble difficulties.
Why is this important for society? EMEHOC purports an analysis of the way in which higher order concepts work. Concepts such as democracy, equality, justice, welfare, discrimination, and others of this kind are perfect candidates for the expressivist treatment in the sense intended in the project. The role of theses concepts is seen in their contribution to the discourse, and this contribution is individuated by its consequences, theoretical and practical. Higher order concepts do not describe. On the contrary, they are normative concepts in a deep sense, used to evaluate as much as to promote particular courses of action. The realist, descriptivist view on values has shown its shortcomings and an alternative way of dealing with the concepts that determine and constitute our rational lives and complex and dynamic societies should be explored in order to be in a better position to understand the kind of animals that we are and the kind of society that lies ahead. The analysis of higher order concepts defended in EMEHOC is an invaluable tool for difficult and deeply ideological debates about individual and social rights and the limits of democracy.