r/functionalprogramming • • 12d ago

FP Journal of Functional Programming - Call for PhD Abstracts

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12 Upvotes

FP friends -- please encourage recently completed PhD students to publish their dissertation abstracts in the Journal of Functional Programming: simple process, no refereeing, open access, 250+ published to date, deadline 30th November 2026.  Please share! 

https://people.cs.nott.ac.uk/pszgmh/jfp-phd-abstracts.html


r/functionalprogramming • • Sep 10 '26

FP Gleam Gathering 2027 next Feburary in London

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3 Upvotes

r/functionalprogramming • • 5h ago

FP Mischief - The Haskell Game Engine. Now with Rendering, Assets, Input.

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5 Upvotes

r/functionalprogramming • • 3d ago

FP Roc and Joy: Productivity in Production by Niclas Åhden at Func Prog Sweden

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6 Upvotes

r/functionalprogramming • • 4d ago

FP Transforming Software Evolution by Adam Tornhill at Func Prog Conf

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4 Upvotes

r/functionalprogramming • • 6d ago

C# C# 15: Union Types, Closed Hierarchies, and the One Value™ That Isn't Any of Them · cekrem.github.io

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9 Upvotes

r/functionalprogramming • • 8d ago

λ Calculus Computing a Factorial with Church Numerals

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8 Upvotes

r/functionalprogramming • • 10d ago

FP Fully-funded PhD studentships at the University of Nottingham, UK

13 Upvotes

Interested in a PhD studentship in the Functional Programming Lab in Nottingham? Fully-funded studentships are currently being advertised; deadline 6 January 2027. Please share, and encourage excellent students to apply!  https://people.cs.nott.ac.uk/pszgmh/phd-advert.html


r/functionalprogramming • • 13d ago

OO and FP I'm so sick of people calling classes OOP and lambdas functional

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0 Upvotes

r/functionalprogramming • • 16d ago

News I tried Bend 2: formal verification with AI, parallelism. My thoughts.

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0 Upvotes

It's a 21 minute video. The first 9 minutes are demos and walkthrough. The technical explanations and my thoughts start at 9:56.


r/functionalprogramming • • 18d ago

Intro to FP Let's Play Agda (also on mobile!)

14 Upvotes

One of my friends introduced to me this Agda tutorial: Let's Play Agda, and I enjoyed it. However, its implementation relies on a backend running instances of Emacs, which, is obviously not friendly to mobile users. Therefore, I forked the repo, replaced the backend with a WASM version of VS Code and Agda, and made the UI more modern (TBH, that means more LLM-ish). Now I can easily play Agda on my phone!

My own version of Let's Play Agda is here:

https://andyshiue.github.io/lets-play-agda/

Even though I know I have the right to publish the adapted version because the original Agda files are licensed by CC BY-SA, I've contacted the original author, iblech, to seek for his opinions. However, he hasn't replied yet and it's been several day so I decided to directly post it here.


r/functionalprogramming • • 20d ago

Jobs We built a community-maintained job board for Formal Verification (FVjobs)

29 Upvotes

Hey everyone!

With all the attention formal verification has been getting lately, particularly at the intersection of AI, theorem proving, and programming languages, we decided to put together FVjobs, a community-maintained job board to help people figure out who's actually hiring.

https://github.com/typetheoryforall/FVjobs

The board covers formal verification, proof engineering, automated reasoning, verified compilers, and AI-assisted theorem proving, among other related areas.

We're also keeping track of which tools companies use (Lean, Rocq, Isabelle, SMT, etc.), remote work options, and geographical restrictions. Hopefully, this makes it easier to find relevant opportunities without digging through dozens of company websites.

For now, we're keeping things simple with GitHub and GitHub Issues. Depending on how the project develops and whether there's enough community interest, we might eventually build a dedicated website.

This is a community effort, and we'd love your help keeping it up to date!

If you know of an open position, no GitHub knowledge is necessary. You can simply fill out this form:

https://github.com/typetheoryforall/FVjobs/issues/new?template=new-job.yml

Of course, issues and PRs are also very welcome.

Feedback and suggestions are appreciated, especially regarding what would make this resource more useful to the community!


r/functionalprogramming • • 21d ago

FP How close can pure FP get to C?

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31 Upvotes

r/functionalprogramming • • 23d ago

Gleam Typed FP on $2 microcontrollers with Gleam & AtomVM Body: Build IoT devices with Erlang-ecosystem languages. Davide Bettio & Giacomo Cavalieri share how on BEAM There, Done That

24 Upvotes

In this episode, Davide and Giacomo share: 
- How AtomVM squeezes the BEAM onto memory-constrained devices 
- Why Gleam and AtomVM are a perfect match for hobbyists and students 
- Davide's "scar story" of a buggy AtomVM-powered home thermostat leaving him debugging in the cold 
- The trade-offs of the AtomVM standard library and how to extend it 
- Writing Gleam bindings for AtomVM features via Erlang FFI 
- Example projects to tackle as an embedded Gleam beginner 
- What's possible with $2 boards, some sensors, and MQTT 

https://youtu.be/57Vhx7FHk34


r/functionalprogramming • • Oct 14 '26

Haskell Types of types: Haskell's Kind system

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5 Upvotes

r/functionalprogramming • • Oct 12 '26

FP The Bowling Game - From Imperative to Functional Programming - Part 3

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4 Upvotes

r/functionalprogramming • • Oct 06 '26

Gleam Gleam doesn't compile to Erlang source anymore | Gleam programming language

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96 Upvotes

r/functionalprogramming • • Oct 06 '26

Question Youtube channels/resources for learning functional programming in python

11 Upvotes

Hello everyone! I'm taking a functional programming course in python and was wondering if there were any valuable resources (preferably youtube channels) that cover things like LLists, higher order functions, efficiency, data structures, searching, sorting, etc.

Any help would be appreciated thanks :)


r/functionalprogramming • • Oct 02 '26

Haskell Turbo Haskell

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8 Upvotes

r/functionalprogramming • • Oct 01 '26

FP Myth-busting the impossibility of functional programming hiring

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11 Upvotes

r/functionalprogramming • • Sep 28 '26

News [Scala News] - August 2026 edition

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5 Upvotes

r/functionalprogramming • • Sep 26 '26

TypeScript Fast TypeScript linter to prioritise immutability

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10 Upvotes

Hello,
Not sure how useful JavaScript/TypeScript are in the FP community.
If they are, I've just made yet another take on enforcing immutability in JS/TS - via a fast linter.
Essentially, it bans let/var, reassignments, non-readonly object and class properties.
To use any of the above, an explicit linter disable comment is needed.
So far, 3 variants of disable comments are available - `// ptsl-disable-fn` (function body scoped), and more classic `// ptsl-disable-line` and `// ptsl-disable-next-line`

So, the following code will be banned by linter:

const nextNum = () => {
  let x = 0; // Do not use let/var - only use const
  const increment = () => {
    return x += 1; // Do not reassign variable's value unless absolutely necessary.
  }
  return increment;
};

A `// ptsl-disable-fn` comment will make it pass:

const nextNum = () => {
  // ptsl-disable-fn
  let x = 0;
  const increment = () => {
    return x += 1;
  }
  return increment;
};

Any feedback welcome.


r/functionalprogramming • • Sep 24 '26

FP WebAssembly on the BEAM: Building erlang_wasm in Erlang by Benoit Chesneau at Func Prog Sweden

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6 Upvotes

r/functionalprogramming • • Sep 21 '26

Meetup [San Francisco] - Scala Summit 2026

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3 Upvotes