If you ever want to build your own DSL (Domain Specific Language) or contribute to a major compiler like LLVM or Rust, these foundations are non-negotiable. Recommended Resources
The journey begins by moving away from "concrete syntax" (the curly braces and semicolons) and toward . You learn that a program is a structured mathematical object, not just a string of characters. 2. Statics: Type Systems 15312 foundations of programming languages
The climax of the course is proving . Together, these two properties guarantee that if a program passes the type checker, it will either finish with a result or keep making progress—it will never crash or enter an undefined state. Why Study It? If you ever want to build your own
The "Dynamics" describe how a program steps from one state to the next. Using , you write rules that dictate exactly how an expression evaluates. This is where you learn about: Why Study It