---
license: lgpl-2.1
tags:
- theorem-proving
- formal-methods
- why3
- verification
- smt
task_categories:
- text-generation
- feature-extraction
language:
- en
size_categories:
- 1K<n<10K
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
dataset_info:
  features:
  - name: fact
    dtype: string
  - name: type
    dtype: string
  - name: library
    dtype: string
  - name: imports
    list: string
  - name: filename
    dtype: string
  - name: symbolic_name
    dtype: string
  - name: docstring
    dtype: string
  splits:
  - name: train
    num_bytes: 1324943
    num_examples: 3164
  download_size: 124904
  dataset_size: 1324943
---

# Why3

A structured dataset of lemmas, functions, and predicates from **Why3**, a platform for deductive program verification.

## Source

- **Repository:** https://gitlab.inria.fr/why3/why3
- **Website:** http://why3.lri.fr/
- **License:** LGPL-2.1

## Statistics

| Property | Value |
|----------|-------|
| **Total Entries** | 3,164 |
| **Lemmas** | 1,497 |
| **Functions** | 976 |
| **Predicates** | 691 |
| **Source Files** | 1,067 |

## Schema

| Column | Type | Description |
|--------|------|-------------|
| `fact` | string | Declaration signature or body |
| `type` | string | "lemma", "function", or "predicate" |
| `library` | string | Why3 module (stdlib, examples) |
| `imports` | list[string] | use statements |
| `filename` | string | Source .mlw file |
| `symbolic_name` | string | Declaration name |

## About Why3

Why3 is a platform for:
- Deductive program verification
- SMT solver integration (Z3, CVC4, Alt-Ergo)
- Proof assistant integration (Coq, Isabelle)
- WhyML specification language

## Creator

Charles Norton ([phanerozoic](https://huggingface.co/phanerozoic))