 We have mentioned the view that facts may explain actions and mental states and the view that facts are what we know. Facts are also invoked in the philosophy of mind by philosophers who claim that judgments or beliefs enjoy the property of intentionality, of being “directed towards” something, because they represent states of affairs or are psychological relations to states of affairs and that judgments and beliefs are correct or satisfied only if states of affairs obtain, that is, if facts exist. Versions of these claims are given by many philosophers from Meinong, the early Husserl and Russell to Searle (Searle 1983). Analogous claims in semantics are sometimes made about propositions or other truth-bearers: the proposition that Sam is sad represents the state of affairs that Sam is sad and is true only if this state of affairs obtains. Versions of this view are given by Husserl, Wittgenstein and Carnap. See the  supplementary document on the History of Philosophies of Facts.