• Peirce's Deductive Logic: Relations, Graphs, and Triadic Logic

  • Feb 22 2025
  • Length: 22 mins
  • Podcast

Peirce's Deductive Logic: Relations, Graphs, and Triadic Logic

  • Summary

  • This text, excerpted from the Stanford Encyclopedia of Philosophy, provides an overview of Charles Sanders Peirce's extensive work in deductive logic. It highlights Peirce's expansion of logic in three dimensions: formalism, systems, and semantic values. The entry explores Peirce's contributions to predicate logic, diagrammatic systems (Existential Graphs), and three-valued logic. It also contextualizes Peirce's work within the broader history of logic, comparing him to contemporaries like Frege and examining his influence on subsequent logicians. The article presents Peirce’s motivations and explores how his pragmatic maxim shaped his innovative approaches to logical representation.

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