lean VS ttlite

Compare lean vs ttlite and see what are their differences.

ttlite

A SuperCompiler for Martin-Löf's Type Theory (by ilya-klyuchnikov)
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lean ttlite
4 1
1,915 118
- -
0.0 0.0
over 3 years ago about 2 years ago
C++ Scala
Apache License 2.0 -
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

lean

Posts with mentions or reviews of lean. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-03-26.
  • How do I get back into math?
    3 projects | /r/math | 26 Mar 2021
    However, mathlib makes some weird design choices. For example, (semi)groups are defined using multiplicative notation -- and then immediately followed by an entire section giving the exact same definitions using additive notation! The claimed reason for this is that the more abstract approach is inconvenient for automation. I did it in Coq using the abstract approach, and indeed, noticed that doing so broke automation, which I then worked around in various ways. But it's just weird to me as a mathematician to have additive and multiplicative groups be different objects, so I wouldn't want to do it the Lean way come hell or high water. The Lean approach causes practical difficulties as well: you have to prove every theorem about groups twice. In some cases (e.g. product groups), you have to prove every theorem FOUR times. Ugh.

ttlite

Posts with mentions or reviews of ttlite. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-10-28.

What are some alternatives?

When comparing lean and ttlite you can also consider the following projects:

Agda - Agda is a dependently typed programming language / interactive theorem prover.

FStar - A Proof-oriented Programming Language

Coq-HoTT - A Coq library for Homotopy Type Theory

CoqGym - A Learning Environment for Theorem Proving with the Coq proof assistant

arend-lib

daisy-nfsd - DaisyNFS is an NFS server verified using Dafny and Perennial.

OEISbot - Automatically posts links to OEIS sequences on Reddit

topshell - TopShell - a purely functional, reactive scripting language

Coq-Equations - A function definition package for Coq

cicada - Cicada Language

order-taking - Idris version of Domain Modeling Made Functional Book.

mrsc - A toolkit for building multi-result supercompilers