We also formalized the Monderer–Samet (1989) p-belief version, with proving assistance from @axiommathai's AxiomProver.
This illustrates the power of composability: Once the primitives (beliefs, partitions, etc.) are formal, we can automate probing for and proving extensions.
The birth of EconLib
50 yrs ago, Nobel-Prize-winning economist Robert Aumann proved that rational agents can't "agree to disagree."
We formalized this famous theorem in Lean. Strikingly, AxiomProver made an implicit underlying assumption explicit.
Today we announce EconLib.
@skominers @HarvardHBS
We also formalized the Monderer–Samet (1989) p-belief version, with proving assistance from @axiommathai's AxiomProver.
This illustrates the power of composability: Once the primitives (beliefs, partitions, etc.) are formal, we can automate probing for and proving extensions.
Users appreciate formalizing economic theorems like Monderer-Samet P-Belief with AI assistants such as AxiomProver because it makes assumptions clearer and testable.