---
dataset_info:
  features:
  - name: problem
    dtype: string
  - name: solution
    dtype: string
  - name: answer
    dtype: string
  - name: problem_type
    dtype: string
  - name: question_type
    dtype: string
  - name: source
    dtype: string
  - name: synthetic
    dtype: bool
  - name: source_dataset
    dtype: string
  - name: source_split
    dtype: string
  - name: __index_level_0__
    dtype: int64
  splits:
  - name: train
    num_bytes: 93993948
    num_examples: 58088
  download_size: 41625688
  dataset_size: 93993948
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
---

# NuminaMath-1.5-proofs-only-strict

A strictly filtered version of the NuminaMath-1.5-proofs-only dataset, containing ONLY
validated mathematical proof problems.

## 📊 Filtering Results
- **Original dataset**: Numina1.5 -> filter for proofs -> 110,998 rows

- **Filters applied**:
  - ✓ Kept rows where `answer = "proof"` (proof problems only)
  - ✓ Kept rows where `solution_is_valid = "Yes"`
  - ✓ Kept rows where `problem_is_valid = "Yes"`
  - ✓ Dropped validation columns after filtering

- **Filtered dataset**: 58,088 rows (removed 52,910 rows)

## 📦 Dataset

- **Columns preserved**:
  - `problem` - The mathematical problem statement requiring a proof
  - `solution` - Step-by-step proof/solution
  - `answer` - Always "proof" (filtered to contain only proof problems)
  - `problem_type` - Type of mathematical problem
  - `question_type` - Question format/style
  - `source` - Original source of the problem
  - `synthetic` - Whether the problem is synthetically generated
  - `source_dataset` - Source dataset identifier
  - `source_split` - Dataset split (train/test/val)

This strict version contains only validated mathematical proof problems, perfect for
training models on formal mathematical reasoning and proof generation.