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Coq VS Haskell

Compare Coq VS Haskell and see what are their differences

Coq logo Coq

Coq is a proof assistant, which allows you to write mathematical proofs in a rigorous and formal...

Haskell logo Haskell

An advanced purely-functional programming language
  • Coq Landing page
    Landing page //
    2022-04-17
  • Haskell Landing page
    Landing page //
    2023-05-01

We recommend LibHunt Haskell for discovery and comparisons of trending Haskell projects.

Coq features and specs

  • Formal Verification
    Coq provides a powerful system for formal verification, allowing users to prove the correctness of algorithms and software with mathematical precision.
  • Rich Type System
    Coq's dependent type system enables expressive and flexible programming, allowing types to depend on values and offering advanced type safety.
  • Proof Assistance
    Coq includes an interactive proof assistant that helps in constructing formal proofs, making it easier to verify complex mathematical and computational concepts.
  • Wide Range of Applications
    Coq is used in various fields such as mathematics, computer science, and industry for the development of certified programs and formalized mathematics.

Possible disadvantages of Coq

  • Steep Learning Curve
    Due to its complexity and the level of abstraction, Coq can be challenging for beginners to learn and use effectively without substantial training.
  • Limited Automation
    While Coq provides tools for automating some proof steps, a significant portion of proofs may still require manual intervention and human insight.
  • Performance Constraints
    The requirement to construct proofs can lead to performance trade-offs, making Coq less efficient for some computational tasks compared to other tools.
  • Niche Community
    Coq has a specialized user community, which might make finding learning resources, collaborators, or support more challenging compared to more mainstream programming languages.

Haskell features and specs

  • Pure Functional Programming
    Haskell emphasizes pure functional programming, meaning functions have no side effects. This leads to code that is easier to understand, test, and maintain.
  • Strong Type System
    Haskell's type system is strong and expressive, allowing developers to catch many errors at compile time. This results in more reliable code.
  • Lazy Evaluation
    Haskell uses lazy evaluation by default, which can lead to performance improvements by avoiding unnecessary computations and enabling the creation of infinite data structures.
  • Immutability
    In Haskell, data is immutable by default. This leads to simpler reasoning about code behavior and reduces bugs related to mutable state.
  • High-Level Abstractions
    Haskell provides powerful abstractions like monads, functors, and applicative functors, which can lead to more concise and expressive code.
  • Concurrency
    Haskell has excellent support for concurrency and parallelism through its lightweight threading model and software transactional memory, making it suitable for concurrent applications.
  • Community and Libraries
    Haskell has a dedicated community and a rich set of libraries and tools, which can help accelerate development and provide solutions to common problems.

Possible disadvantages of Haskell

  • Steep Learning Curve
    Haskell has a steep learning curve, particularly for developers who are new to functional programming or coming from imperative and object-oriented backgrounds.
  • Performance Concerns
    While Haskell can be efficient, its performance can sometimes lag behind other languages like C++ or Rust for certain use cases, especially those requiring low-level optimization.
  • Limited Industry Adoption
    Haskell is not as widely adopted in industry compared to languages like Java, Python, or JavaScript, which can limit job opportunities and community size.
  • Compilation Times
    Haskell's compilation times can be long, especially for large projects, which can slow down the development process.
  • Tooling and IDE Support
    While improving, the tooling and IDE support for Haskell is not as mature as for some other popular languages, potentially affecting developer productivity.
  • Complexity of Advanced Features
    Some of Haskell's advanced features, such as monads and type-level programming, can be complex and difficult to master, which can be a barrier for new developers.
  • Library Gaps
    Although Haskell has many libraries, there might be gaps or less mature libraries for some specific use cases compared to more mainstream languages.

Coq videos

Ubiquinol CoQ-10 Supplement Review

More videos:

  • Review - Gumbenni listened to Sseth's review on Coq

Haskell videos

Functional Programming & Haskell - Computerphile

More videos:

  • Review - Marloe Haskell Review
  • Review - Marloe Watch Company - Haskell - Watch Review

Category Popularity

0-100% (relative to Coq and Haskell)
Programming Language
25 25%
75% 75
OOP
31 31%
69% 69
Generic Programming Language
Dynamic Programming Language

User comments

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Social recommendations and mentions

Based on our record, Coq should be more popular than Haskell. It has been mentiond 46 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Coq mentions (46)

  • The First Stable Release of a Rust-Rewrite Sudo Implementation
    Are those more important than, say: - Proven with Coq, a formal proof management system: https://coq.inria.fr/ See in the real world: https://aws.amazon.com/security/provable-security/ And check out Computer-Aided Verification (CAV). - Source: Hacker News / over 1 year ago
  • In Which I Claim Rich Hickey Is Wrong
    Dafny and Whiley are two examples with explicit verification support. Idris and other dependently typed languages should all be rich enough to express the required predicate but might not necessarily be able to accept a reasonable implementation as proof. Isabelle, Lean, Coq, and other theorem provers definitely can express the capability but aren't going to churn out much in the way of executable programs;... - Source: Hacker News / almost 2 years ago
  • If given a list of properties/definitions and relationship between them, could a machine come up with (mostly senseless, but) true implications?
    Still, there are many useful tools based on these ideas, used by programmers and mathematicians alike. What you describe sounds rather like Datalog (e.g. Soufflé Datalog), where you supply some rules and an initial fact, and the system repeatedly expands out the set of facts until nothing new can be derived. (This has to be finite, if you want to get anywhere.) In Prolog (e.g. SWI Prolog) you also supply a set of... Source: almost 2 years ago
  • Mark Petruska has requested 250000 Algos for the development of a Coq-avm library for AVM version 8
    Information about the Coq proof assistant: https://coq.inria.fr/ , https://en.wikipedia.org/wiki/Coq. Source: almost 2 years ago
  • Basic SAT model of x86 instructions using Z3, autogenerated from Intel docs
    This type of thing can help you formally verify code. So, if your proof is correct, and your description of the (language/CPU) is correct, you can prove the code does what you think it does. Formal proof systems are still growing up, though, and they are still pretty hard to use. See Coq for an introduction: https://coq.inria.fr/. - Source: Hacker News / almost 2 years ago
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Haskell mentions (21)

  • Is there a programming language that will blow my mind?
    Haskell - a general-purpose functional language with many unique properties (purely functional, lazy, expressive types, STM, etc). You mentioned you dabbled in Haskell, why not try it again? (I've written about 7 things I learned from Haskell, and my book is linked at them bottom if you're interested :) ). Source: almost 2 years ago
  • Where to go from here?
    Where you go is entirely up to you. According to haskell.org, Haskell jobs are a-plenty. sigh. Source: about 2 years ago
  • Haskell.org now has "Get Started" page!
    Should they be part of haskell.org or something else? Source: over 2 years ago
  • Haskell.org now has "Get Started" page!
    Haskell.org now has a big purple Get Started button that takes you to a nice short guide (haskell.org/get-started) that quickly provides all the basic info to get going with Haskell. It is aimed for beginners, to reduce choice fatigue and to give them a clear, official path to get going. Source: over 2 years ago
  • dev environment for windows
    I just jumped into the wiki "Write Yourself a Scheme in 48 hours" which looks pretty good. (although some of the text explanation is hard to understand without context).. I used cabal to set up the starter project. Sublime editor seems to work OK and I just use the git Bash shell on windows to compile the program directly on the command line. So maybe this is all good enough for now (?). It seems installing... Source: over 2 years ago
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What are some alternatives?

When comparing Coq and Haskell, you can also consider the following products

Agda - Agda is a dependently typed functional programming language. It has inductive families, i.e.

Rust - A safe, concurrent, practical language

Isabelle - Isabelle is a proof assistant for writing and checking mathematical proofs by computer.

Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Racket Lang - Racket (formerly PLT Scheme) is a modern programming language in the Lisp/Scheme family, suitable...

JavaScript - Lightweight, interpreted, object-oriented language with first-class functions