---
license: apache-2.0
tags:
- theorem-proving
- formal-methods
- fstar
- dependent-types
- verification
task_categories:
- text-generation
- feature-extraction
language:
- en
size_categories:
- 10K<n<100K
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: 4164767
    num_examples: 12957
  download_size: 794637
  dataset_size: 4164767
---

# F-Star

A structured dataset of type declarations and definitions from **F\***, a proof-oriented programming language.

## Source

- **Repository:** https://github.com/FStarLang/FStar
- **Website:** https://fstar-lang.org
- **License:** Apache-2.0

## Statistics

| Property | Value |
|----------|-------|
| **Total Entries** | 12,957 |
| **Val declarations** | 9,219 |
| **Type definitions** | 3,738 |
| **Source Files** | 2,799 |

## Schema

| Column | Type | Description |
|--------|------|-------------|
| `fact` | string | Type signature or definition |
| `type` | string | "val" or "type" |
| `library` | string | F* library/directory |
| `imports` | list[string] | Module opens |
| `filename` | string | Source .fst/.fsti file |
| `symbolic_name` | string | Declaration name |

## About F*

F* is a proof-oriented language for:
- Verified cryptography (HACL*, EverCrypt)
- Low-level systems programming (via KaRaMeL)
- Effectful programming with refinement types
- Extraction to OCaml, F#, C, WebAssembly

## Creator

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