Guillaume Lethuillierglthr.com·Jul 6, 2024First-Order, Second-Order Expressions, and Delimiters in Languages↘ This article non-rigorously examines a simple observation about “languages” (loosely defined as a series of expressions that are evaluated) by revealing a fundamental duality between first-order and second-order expressions. All opinions herein are...59 readslanguagesAdd a thoughtful commentNo comments yetBe the first to start the conversation.