Introduction to Vertex Operator Algebras

--- Base version+++ Proposed version@@ -1,6 +1,5 @@ # About this note  - Scope: foundations of vertex operator algebras and their applications.-- Prerequisites and conventions: formal calculus; compact notation; purely even vertex algebras over $\mathbb C$.+- Prerequisites: formal calculus. - Roadmap: VA axioms and properties → conformal structure → chiral correlation functions → modules → tensor categories → extensions and quantum Galois theory.-- Formal identities and their analytic interpretation.