https://huggingface.co/datasets/ulamai/UnsolvedMath/resolve/10a7fd972ee625f10629d5a1148d0f6f82a3fb1f/open-math.pdf
hf download hf://datasets/ulamai/UnsolvedMath@10a7fd972ee625f10629d5a1148d0f6f82a3fb1f/open-math.pdf
curl -L -o open-math.pdf https://huggingface.co/datasets/ulamai/UnsolvedMath/resolve/10a7fd972ee625f10629d5a1148d0f6f82a3fb1f/open-math.pdf
