Add dataset HOLZero

README.md

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+---
+license: other
+task_categories:
+  - text-generation
+  - feature-extraction
+language:
+  - en
+tags:
+  - theorem-proving
+  - formal-methods
+  - hol-zero
+  - higher-order-logic
+size_categories:
+  - 10K<n<100K
+dataset_info:
+  features:
+  - {name: fact, dtype: string}
+  - {name: statement, dtype: string}
+  - {name: proof, dtype: string}
+  - {name: type, dtype: string}
+  - {name: kind, dtype: string}
+  - {name: symbolic_name, dtype: string}
+  - {name: library, dtype: string}
+  - {name: filename, dtype: string}
+  - {name: imports, list: string}
+  - {name: deps, list: string}
+  - {name: docstring, dtype: string}
+  - {name: line_start, dtype: int64}
+  - {name: line_end, dtype: int64}
+  - {name: has_proof, dtype: bool}
+  - {name: source_url, dtype: string}
+  - {name: commit, dtype: string}
+  - {name: content_level, dtype: string}
+  splits:
+  - {name: train, num_examples: 248}
+  config_name: default
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*
+---
+
+# HOLZero
+
+Declarations from HOL Zero, a minimalist HOL theorem prover by Mark Adams.
+
+## Source
+
+- Repository: http://www.proof-technologies.com/holzero/
+- Commit: `0.6.3`
+- Files: 39
+- License: other
+
+## Schema
+
+| Column | Type | Description |
+|--------|------|-------------|
+| fact | string | Verbatim declaration: statement followed by proof where present |
+| statement | string | Verbatim statement (keyword through the closing period) |
+| proof | string | Verbatim proof block (`Proof. ... Qed.`/`Defined.`), empty if none |
+| type | string | Raw declaration keyword |
+| kind | string | Normalized kind |
+| symbolic_name | string | Declaration identifier |
+| library | string | Sub-library |
+| filename | string | Repository-relative source path |
+| imports | list[string] | File-level `Require`/`Import` modules |
+| deps | list[string] | Intra-corpus identifiers referenced |
+| docstring | string | Preceding documentation comment, null if absent |
+| line_start | int | First source line |
+| line_end | int | Last source line |
+| has_proof | bool | Whether a proof block was captured |
+| source_url | string | Upstream repository |
+| commit | string | Upstream commit extracted |
+| content_level | string | `statement+proof` |
+
+## Statistics
+
+- Entries: 248
+- With proof: 0 (0.0%)
+- With docstring: 0 (0.0%)
+- Libraries: 1
+
+### By type
+
+| Type | Count |
+|---|---|
+| theorem | 218 |
+| definition | 29 |
+| axiom | 1 |
+
+## Example
+
+```coq
+false = (!(p:bool). p)
+```
+
+- kind: definition | symbolic_name: `false_def` | src/bool.ml:48
+
+## Use
+
+Statement and proof are available both joined (`fact`) and split (`statement`, `proof`) for
+proof-term modeling, autoformalization, retrieval, and dependency analysis via `deps`.
+
+## Citation
+
+```bibtex
+@misc{holzero_dataset,
+  title  = {HOLZero},
+  author = {Norton, Charles},
+  year   = {2026},
+  note   = {Extracted from http://www.proof-technologies.com/holzero/, commit 0.6.3},
+  url    = {https://huggingface.co/datasets/phanerozoic/HOLZero}
+}
+```

data/train-00000-of-00001.parquet

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+size 17702