@inproceedings{Alekseev_2020,
    doi = {10.1145/3357713.3384245},
    url = {https://doi.org/10.1145%2F3357713.3384245},
    year = {2020},
    month = {jun},
    publisher = {{ACM}},
    author = {Yaroslav Alekseev and Dima Grigoriev and Edward A. Hirsch and Iddo Tzameret},
    title = {Semi-algebraic proofs, {IPS} lower bounds, and the {$\tau$}-conjecture: can a natural number be negative?},
    booktitle = {Proceedings of the 52nd Annual {ACM} {SIGACT} Symposium on Theory of Computing}
}

@inproceedings{Alekseev_2020, doi = {10.1145/3357713.3384245}, url = {https://doi.org/10.1145%2F3357713.3384245}, year = {2020}, month = {jun}, publisher = {{ACM}}, author = {Yaroslav Alekseev and Dima Grigoriev and Edward A. Hirsch and Iddo Tzameret}, title = {Semi-algebraic proofs, {IPS} lower bounds, and the {$\tau$}-conjecture: can a natural number be negative?}, booktitle = {Proceedings of the 52nd Annual {ACM} {SIGACT} Symposium on Theory of Computing} }