There are 3 repositories under formal-proofs topic.
Lean 3's obsolete mathematical components library: please use mathlib4
十分钟魔法练习
The Principia Rewrite
Variations on Kirby & Paris' hydra battles and other entertaining math in Coq (collaborative, documented, includes exercises) [maintainer=@Casteran]
A proof-producing SMT/McSat solver, handling polymorphic first-order logic, and using an SMT/McSat core extended using Tableaux, Superposition and Rewriting.
Formalized quantum computing in Lean theorem prover
Experiments with interactive theorem provers, LLMs and formal systems
IsarMathLib is a library of formalized mathematics for Isabelle/ZF.
An exhaustive condensed detachment formal proof generator for Hilbert systems in proof theory.
Metamath-lamp (Lite Assistant for Metamath Proofs) is a GUI-based proof assistant for creating formal mathematical proofs in Metamath that does not require installation (just run it directly using your web browser).
A library of formalized automaton algorithms
some simple&naive formal proof of trivial Number Theory, using Agda/Coq, just to practice skills
Library for formalizing cryptography proofs in Lean 3 (Deprecated)
Formalization of temporal logic in Coq
CafeOBJ proof of Key Secrecy of PACE with OTS/CafeOBJ.
Aris: a logic engine/formal proof interface; 2nd generation, successor to the C version of Aris.
A formalised proof of Fermat's Last Theorem for exponent 3 in the Lean proof assistant.
matroids in lean
A formal verification of a mathematics/combinatorics paper "On the Erdős-Tuza-Valtr Conjecture"
An implementation of Algorithm W in Idris with a complete proof
Local mirror of Featherweight OCL entry of the Archive of Formal Proofs (AFP).
Paxos algorithm specified and proved in TLA+/PlusCal, with separate processes and invariants for proposers and acceptors.
A Formalization of Martingales using Isabelle/HOL
Ongoing Lean formalisation of the proof of Fermat's Last Theorem
An exploration of fumulas in Agda—a new perspective on ring theory