Truthmaking

The notions of “truthmaking” and “truthmakers” are central to many attempts in contemporary metaphysics to come to grips with the connection between truth and reality. The intuitive motivation for theories of truthmaking is the idea that truth depends on reality: that truth is not primitive or fundamental, but rather derivative and dependent. The idea, more precisely stated, is that true propositions (or whatever are the primary truth-bearers, e.g., statements, sentences, or beliefs) are not true in and of themselves but must be made true by reality. Truthmaker theorists think that for a proposition to be made true is for it to be true in virtue of the existence of some entity, which is called its “truthmaker.” While many find the thought that truths are “true in virtue of,” or “grounded in,” or “determined by” reality compelling, not everyone finds the truthmaker theorist’s way of articulating this idea adequate. This article focuses on recent truthmaker theories, their challenges, and alternative approaches to truthmaking. One major point of contention surveyed here is the scope of truthmaking: i.e., whether every truth has a truthmaker, or only some. Another important issue is the nature of truthmakers. Some contend that states of affairs are truthmakers, while others hold that particular property instances (“tropes”) are better qualified to ground truths. Truthmaker theorists also disagree about how to characterize the “truthmaking relation” that holds between truths and their truthmakers. The various principles of truthmaking (principles setting out necessary and sufficient conditions under which an entity is a truthmaker for some proposition) offered in the literature are also surveyed in this entry. Perhaps the most contentious matter in truthmaker theory is how to deal with “problem cases”: i.e., truths for which there are no obvious truthmakers, such as negative existential truths, necessary truths, and subjunctive conditional truths. Some deny that these truths have truthmakers, but others have come up with ingenious and therefore controversial accounts of the truthmakers for these truths. Works on the relation between theories of truth and theories of truthmaking are also surveyed. Because it brings together foundational issues in ontology and truth, the nature of truthmaking and truthmakers has and will continue to be a source of interest and excitement for philosophers.