Picture theory of languageThe picture theory of language, also known as the picture theory of meaning, is a theory of linguistic reference and meaning articulated by Ludwig Wittgenstein in the Tractatus Logico-Philosophicus. Wittgenstein suggested that a meaningful proposition pictured a state of affairs or atomic fact. Wittgenstein compared the concept of logical pictures (Bilder) with spatial pictures. The picture theory of language is considered a correspondence theory of truth.
MetasemanticsIn the philosophy of language and metaphysics, metasemantics is the study of the foundations of natural language semantics (the philosophical study of meaning). Metasemantics searches for "the proper understanding of compositionality, the object of truth-conditional analysis, metaphysics of reference, as well as, and most importantly, the scope of semantic theory itself" and asks "how it is that expressions become endowed with their semantic significance".
ReferenceA reference is a relationship between objects in which one object designates, or acts as a means by which to connect to or link to, another object. The first object in this relation is said to refer to the second object. It is called a name for the second object. The next object, the one to which the first object refers, is called the referent of the first object. A name is usually a phrase or expression, or some other symbolic representation. Its referent may be anything – a material object, a person, an event, an activity, or an abstract concept.
