Formalization and Automated Reasoning: A Personal and Historical Perspective
Institute for Pure & Applied Mathematics (IPAM) via YouTube
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Overview
Syllabus
Intro
Summary of talk
A personal retrospective
Automation, interaction, libraries
Automated theorem proving in its pomp
First steps in interactive theorem proving
Three influential proof checkers
Milner on automation and interaction
Reasons for developing library results
Libraries: what can go wrong?
The Great 100 Theorems
The Isoperimetric Theorem (formally)
Unpacking the definitions (standard)
Unpacking the definitions (not so standard)
Jordan with inside and outside
Reduction to the convex case (informally)
Reduction to the convex case (formally)
Steiner's hinge argument (informally)
Existence of maximal curve
The hinge gets stuck
Osserman's analytical proof (1)
Formalizing Osserman's proof
Wirtinger's inequality (informally)
Keeping the calculus general
The overall isoperimetric proof
The final statement
Taught by
Institute for Pure & Applied Mathematics (IPAM)