philosophy of logic, the study, from a philosophical perspective, of the nature and types of logic, including problems in the field and the relation of logic to mathematics and other disciplines. …

The crucial idea in this theory is that of truth (absolutely or with respect to an interpretation). It was first analyzed in logical semantics around 1930 by the Polish-American logician Alfred Tarski. …

Oct 29, 2025 · Logic, the study of correct reasoning, especially as it involves the drawing of inferences. This article discusses the basic elements and problems of contemporary logic and …

Sep 24, 2025 · Formal logic, the abstract study of propositions, statements, or assertively used sentences and of deductive arguments. The discipline abstracts from the content of these …

Tautology, in logic, a statement so framed that it cannot be denied without inconsistency. The notion was first developed in the early 20th century by the American philosopher Charles …

Truth, in philosophy, the property of sentences, assertions, beliefs, thoughts, or propositions that are said, in ordinary discourse, to agree with the facts or to state what is the case. Major …

Oct 18, 2025 · In a still narrower sense, logic is restricted to the study of inferences that depend only on certain logical concepts, those expressed by what are called the “logical constants” …

Oct 20, 2025 · What is the role of language in analytic philosophy? Language plays a crucial role in analytic philosophy, with philosophers conducting conceptual investigations involving …

Sep 13, 2025 · syllogism, in logic, a valid deductive argument having two premises and a conclusion.

Oct 6, 2025 · Truth table, in logic, chart that shows the truth-value of one or more compound propositions for every possible combination of truth-values of the propositions making up the …