Johan Håstad, Kilian Risse. On Bounded Depth Proofs for Tseitin Formulas on the Grid; Revisited. In 63rd IEEE Annual Symposium on Foundations of Computer Science, FOCS 2022, Denver, CO, USA, October 31 - November 3, 2022. pages 1138-1149, IEEE, 2022. [doi]
Abstract is missing.