philosophy-of-language

Russell's theory of descriptions analyzes definite descriptions as quantified expressions rather than referring terms. This Skill breaks down how Russell's framework treats statements like "The current king of France is bald" as false rather than meaningless.

Tarskian truth defines semantic truth for formalized languages using the T-schema, where "snow is white" is true if and only if snow is white. This Skill covers Tarskian semantics alongside correspondence, coherence, and pragmatic truth theories.

Speech act theory analyzes utterances as actions, distinguishing locutionary, illocutionary, and perlocutionary acts. This Skill explains how Austin and Searle demonstrate that language performs social functions rather than merely describing reality.

Kaplan's framework separates character, the linguistic rule determining reference from context, from content, the specific proposition expressed. This Skill analyzes how indexicals like "I" and "here" shift reference based on the context of utterance.

Putnam's Twin Earth experiment demonstrates that meaning depends partly on the external environment, not just internal psychological states. This Skill covers the thought experiment alongside Kripke's arguments to illustrate direct reference and semantic externalism.