Sitemap

A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

Posts

Universal Morphisms and Effect Handlers

7 minute read

Published:

1. Introduction

As we recall from part 1, free objects are defined by left adjoints to forgetful functors, and can also be defined by a particular universal property. Universal properties are given by universal arrows: unique morphisms that characterize an object up to isomorphism. In part 2, we talked about one particular universal property, and this part will focus on another.

Verified Dynamic Programming with Σ-types in Lean

17 minute read

Published:

1. Introduction

If you’ve taken an algorithms class, you have likely seen dynamic programming, specifically a technique called memoization. Memoization works to optimize recursive algorithms by caching the solutions to subproblems in a table, and when a subproblem is encountered, it queries the table instead of recomputing the solution. This gives us an exponential performance boost.

The Free-er Monad

1 minute read

Published:

Free monads provide a way to represent effectful sequential programs as pure syntactic data, separate from their interpretation. You describe what should happen as an abstract tree of effects, leaving open how you want it to happen. By decoupling syntax from semantics like this you gain full control over how programs are evaluated and interpreted - for example we could interpret a syntax tree in multiple ways:

portfolio

publications

Paper Title Number 4

Published in GitHub Journal of Bugs, 2024

This paper is about fixing template issue #693.

Recommended citation: Your Name, You. (2024). "Paper Title Number 3." GitHub Journal of Bugs. 1(3).
Download Paper

talks

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.