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Thomas Letan
lthms · he/him

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Series

A series gathers together a collection of contents (that is, either posts or other series) into a coherent whole. This is by opposition to tags, which only allows for signaling that two posts refers to a given subject.

A Series on Ltac

Ltac is the “tactic language” of Coq. It is commonly advertised as the common approach to write proofs, which tends to bias how it is introduced to new Coq users. In this series, we present Ltac as the metaprogramming tool it is, since fundamentally it is an imperative language which allows for constructing Coq terms interactively and incrementally.

A Series on Strongly-Specified Functions in Coq

Using dependent types and the Prop sort, it becomes possible to specify functions whose arguments and results are constrained by properties. However, implementing such functions can be challenging. In this series, we explore several approaches available to Coq developers.

My Self-Hosting Journey

I have been renting a server for most of my adult life. It has been a wonderful playground for experimenting and learing. Over the years, I have experimented with many approaches to administrate a Linux server.

Retrospectives

A collection of articles I have written to reflect on what happened at a given time. It is heavily inspired by Drew DeVault “status update” series.

Talks

I have always enjoyed giving talks about my work, and I’ve been —and still am— lucky enough to have employers that give me opportunities in that area.