@InProceedings{chen:LIPIcs.ICALP.2016.94, author = {Chen, Hubie}, title = {{Proof Complexity Modulo the Polynomial Hierarchy: Understanding Alternation as a Source of Hardness}}, booktitle = {43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016)}, pages = {94:1--94:14}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-013-2}, ISSN = {1868-8969}, year = {2016}, volume = {55}, editor = {Chatzigiannakis, Ioannis and Mitzenmacher, Michael and Rabani, Yuval and Sangiorgi, Davide}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICALP.2016.94}, URN = {urn:nbn:de:0030-drops-62290}, doi = {10.4230/LIPIcs.ICALP.2016.94}, annote = {Keywords: proof complexity, polynomial hierarchy, quantified propositional logic} }