task_categories:text-generation task_categories:question-answering language:en license:apache-2.0 size_categories:10K<n<100K format:parquet format:optimized-parquet modality:tabular modality:text library:datasets library:dask library:polars library:mlcroissant arxiv:2511.01846 region:us math reasoning olympiad proof-generation chain-of-thought