Sergei Stepanenko

A novel implementation of the Iris proof mode with improved performance, simplify the handling of equivalences through quotient types, build a variant of Diaframe proof automation, and provide convenience features like automatic construction of Iris fixed points are provided.

An implementation of guarded recursion as an embedded language in Lean consisting of a simply-typed lambda calculus for definitions and a higher-order logic for reasoning, and a presheaf model to prove the soundness of the language and to allow users to export guarded recursive definitions and their theorems into standard Lean developments.