This book presents a comprehensive, non-model-theoretic theory of ontic necessity and possibility within a formal (and formalized) ontology consisting of states of affairs, properties, and individuals. Its central thesis is that all modalities are reducible to intrinsic (or "logical") possibility and necessity if reference is made to certain states of affairs, called "bases of necessity." The viability of this Bases-Theory of Modality is shown also in the case of conditionals, including counterfactual conditionals. Besides the ontological aspects of the philosophy of modality, also the...

This book models and simulates metaphysics by presenting the metaphysics of a model. The small size of the model makes it possible to treat metaphysical matters with a more than usual systematicity and comprehensiveness. In the mirror of sustained analogy, simulation-metaphysics offers a wealth of insights on the real thing: on the doctrines, the methods, and the epistemology of metaphysics.