Hermes Agent
6e2914b06e
Converted with pandoc 3.7 (markdown → org), all 17 files: - README, references, 15 tutorial units - Internal file links updated from .md to .org - Source code blocks (#+begin_src lean) preserved - Tables, math notation, links intact For the Emacs workflow.
Lean 4 + Programming Language Semantics
A self-study curriculum for computer scientists who know PL theory and want to mechanize proofs in Lean 4 — from syntax to soundness of the Hindley-Milner type system.
Structure
├── README.org ← this file ├── tutorial-01-basics/ ← Lean 4 fundamentals │ ├── 01-types-and-functions.org │ ├── 02-inductive-types.org │ ├── 03-propositions-and-proofs.org │ ├── 04-quantifiers-and-equality.org │ ├── 05-advanced-tactics.org │ ├── 06-structures-type-classes.org │ └── 07-dependent-types.org ├── tutorial-02-semantics/ ← PL semantics in Lean │ ├── 08-syntax-representation.org │ ├── 09-substitution.org │ ├── 10-small-step-semantics.org │ ├── 11-stlc-type-system.org │ ├── 12-type-safety.org │ ├── 13-hm-declarative.org │ ├── 14-algorithm-w.org │ └── 15-soundness-completeness.org └── references.org ← all cited resources
How to Use
- Install Lean 4 (VS Code +
lean4extension): lean-lang.org/lean4/doc/quickstart.html - Start with Tutorial 1, Unit 1. Each unit is a standalone
.orgfile with inline Lean exercises. - Type the exercises into a
.leanfile and make it compile. - After Tutorial 1, move to Tutorial 2 to mechanize STLC and HM.
Prerequisites
- Functional programming (Haskell/OCaml familiarity)
- Basic PL theory (lambda calculus, operational semantics, type systems)
- No prior proof assistant experience required
References
See references.org for the full list of resources.