Add dataset card

README.md

@@ -1,29 +1,94 @@
 ---
-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: 111483726
-    num_examples: 193047
-  download_size: 26854373
-  dataset_size: 111483726
-configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: data/train-*
+license: apache-2.0
+task_categories:
+  - text-generation
+  - feature-extraction
+language:
+  - en
+tags:
+  - theorem-proving
+  - formal-methods
+  - lean4
+  - mathlib
+  - mathematics
+size_categories:
+  - 100K<n<1M
 ---
+
+# Mathlib4
+
+Structured dataset of mathematical formalizations from the Mathlib4 library for Lean 4.
+
+## Dataset Description
+
+- **Source:** [leanprover-community/mathlib4](https://github.com/leanprover-community/mathlib4)
+- **Entries:** 193,047
+- **Files processed:** 6,943
+- **License:** Apache 2.0
+
+## Schema
+
+| Column | Type | Description |
+|--------|------|-------------|
+| fact | string | Full declaration body |
+| type | string | theorem, lemma, def, class, structure, instance, inductive, abbrev, axiom |
+| library | string | Top-level Mathlib module (Algebra, Analysis, Topology, etc.) |
+| imports | list | Import statements from source file |
+| filename | string | Source file path within Mathlib |
+| symbolic_name | string | Declaration identifier |
+| docstring | string | Documentation comment (30% coverage) |
+
+## Statistics
+
+### By Type
+| Type | Count | Percentage |
+|------|-------|------------|
+| theorem | 111,804 | 57% |
+| lemma | 36,970 | 19% |
+| def | 27,965 | 14% |
+| instance | 10,322 | 5% |
+| abbrev | 2,570 | 1% |
+| class | 1,710 | 1% |
+| structure | 1,387 | 1% |
+| inductive | 310 | <1% |
+
+### By Library (Top 10)
+| Library | Count |
+|---------|-------|
+| Algebra | 30,936 |
+| Analysis | 20,343 |
+| Data | 20,327 |
+| CategoryTheory | 18,553 |
+| Topology | 16,800 |
+| Order | 13,686 |
+| RingTheory | 12,566 |
+| LinearAlgebra | 9,279 |
+| MeasureTheory | 8,927 |
+| Combinatorics | 4,949 |
+
+### Docstring Coverage
+| Type | With Docstring |
+|------|----------------|
+| def | 98% |
+| class | 98% |
+| structure | 93% |
+| theorem | 15% |
+| lemma | 14% |
+
+## Use Cases
+
+- Retrieval / RAG for Lean 4 theorem proving
+- Mathematical content search and exploration
+- Training embeddings for formal mathematics
+- Documentation generation
+- Semantic search over mathematical definitions
+
+## Example Entry
+
+
+
+## Citation
+
+If you use this dataset, please cite Mathlib:
+
+