Abstract
We show that bounded-depth Frege systems with counting axioms modulo m polynomially simulate Nullstellensatz refutations modulo m. When combined with a previous result of the authors, this establishes the first size (as opposed to degree) separation between Nullstellensatz and polynomial calculus refutations.
Research Supported by NSF Award CCR-9734911, grant #93025 of the joint US-Czechoslovak Science and Technology Program, NSF Award CCR-0098197, and USA-Israel BSF Grant 97-00188
Partially supported by NSF grant DMS-9803515
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Impagliazzo, R., Segerlind, N. (2002). Bounded-Depth Frege Systems with Counting Axioms Polynomially Simulate Nullstellensatz Refutations. In: Widmayer, P., Eidenbenz, S., Triguero, F., Morales, R., Conejo, R., Hennessy, M. (eds) Automata, Languages and Programming. ICALP 2002. Lecture Notes in Computer Science, vol 2380. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45465-9_19
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DOI: https://doi.org/10.1007/3-540-45465-9_19
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