All of us, at one time or another, have been guilty of using Truth Barriers. There are many reasons why we have and many more reasons why we should not be trying to block or put up Truth Barriers against the truth. What are Truth Barriers? Can we break through them? This book can help you break through your barriers to the truth and to recognize what is happening when others use them.

A barrier to entailment exists if you can't get conclusions of a certain kind from premises of another. One of the most famous barriers in philosophy is Hume's Law, which says that you can't get normative conclusions from descriptive premises, or in slogan form: you can't get an ought from an is. This barrier is highly controversial, and many famous counterexamples were proposed in the last century. But there are other barriers which function almost as philosophical platitudes: no Universal conclusions from Particular premises, no Future conclusions from premises about the Past, and no claims that attribute Necessity from premises that merely tell us how things happen to be in the Actual world. Barriers to Entailment proposes a unified logical account of five barriers that have played important roles in philosophy, in the process showing how to diagnose proposed counterexamples and arguing that the case for Hume's Law is as strong as that for the platitudinous barriers. The first two parts of the book employ techniques from formal logic, but present them in an accessible way, suitable for any reader with some background in first-order model theory (of the kind that might be taught in a first class in logic). Gillian Russell introduces tense, modal, indexical, and deontic formal logics, but always avoids unneeded complexity. Each barrier is connected to broader philosophical topics: universality, time, necessity, context-sensitivity, and normativity. Russell brings out under-recognised connections between the domains and lays the groundwork for further work at the intersections. The last part of the book transposes the formal work to informal barrier theses in the philosophy of language, in the process doing new work on the concept of logical consequence, and providing new responses to proposed informal counterexamples to Hume's Law which employ hard-to-formalise tools from natural language, such as speech acts and thick normative expressions.

A quarterly review of religion, theology, and philosophy.

The present volume contains nothing very daring or unconventional. The greater part of the book consists of previously unpublished matter. "Confessio Fidei" is an attempt to put in order what Mr. Inge actually believes, and to explain why he believes it. He supposes he will be classified as belonging to the right wing of theological liberalism, but he prefers to call himself a Christian Platonist, and to claim a humble place in the long chain of Christian thinkers whose philosophy is based on the Platonic tradition. Contents: the state, visible and invisible; theocracies; Greek city state; medieval ideal; modern God-state; religion and the state; idea of progress; Victorian age; white man and his rivals; dilemma of civilization; eugenics.