A WIP definitional (co)datatype package for Lean4
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Updated
Sep 18, 2026 - Lean
A WIP definitional (co)datatype package for Lean4
IO using sized types and copatterns
Code and examples based on the tutorial 'A Tutorial on [Co-]Inductive Types in Coq' by Eduardo Giménez and Pierre Castéran
Code and slides for my talk presented at the seminar.
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