Getting Started

Installation

Requires Python 3.11+.

From PyPI

python3 -m venv .venv
source .venv/bin/activate
pip install proof_frog

After installing ProofFrog via pip, you may want to download the examples repository:

git clone https://github.com/ProofFrog/examples

From source

git clone https://github.com/ProofFrog/ProofFrog
cd ProofFrog
git submodule update --init
python3 -m venv .venv
source .venv/bin/activate
pip install -e .
pip install -r requirements-dev.txt

Web Interface

proof_frog web [directory]

Starts a local web server (default port 5173) and opens the editor in your browser. The [directory] argument specifies the working directory for proof files; it defaults to the current directory.

The web interface lets you edit ProofFrog files with syntax highlighting, validate proofs from the web editor, and explore the game state at each hop.

Command-Line Interface

Command	Description
proof_frog parse <file>	Parse a file and print its AST representation
proof_frog check <file>	Type-check a file for well-formedness
proof_frog prove <file>	Verify a game-hopping proof (-v for verbose output)
proof_frog web [dir]	Launch the browser-based editor

Writing a Proof

See the guide to writing a proof in ProofFrog for a tutorial on writing proofs in ProofFrog, covering all four file types (primitives, games, schemes, proofs) with examples, and the proof structure.

Examples

The examples repository contains primitives, schemes, games, and proofs largely adapted from The Joy of Cryptography by Mike Rosulek. See the Examples page for a full list.

For example:

git clone https://github.com/ProofFrog/examples.git
proof_frog prove 'examples/Proofs/SymEnc/OTUCimpliesOTS.proof'

Vibe-Coding a Proof

See the information from HACS 2026 on vibe-coding a ProofFrog proof with Claude Code.