Algebraic Data Types Ocaml Programming - Latest Information & Updates 2026

More about records vs. variants, and how variants can combine "one of" vs "each of"

OCaml

How to implement the `fold_left` and `fold_right` functionals on lists. Textbook: https://cs3110.github.io/textbook.

The `option`

How to design the equations in an

Achieving polymorphism for `let` expressions in HM

Defining the

HM

How to make variants be recursive, and how to parameterize them on other

An extended example of developing an ADT. Textbook: https://cs3110.github.io/textbook.

let` expressions Textbook: https://cs3110.github.io/textbook.

Natural numbers can be represented as an

Defining the small-step semantics of `let` expressions, based on substitution Textbook: https://cs3110.github.io/textbook.