Level-ordered Q -resolution and tree-like Q -resolution are incomparable

Mahajan, Meena ; Shukla, Anil (2016) Level-ordered Q -resolution and tree-like Q -resolution are incomparable Information Processing Letters, 116 (3). pp. 256-258. ISSN 0020-0190

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Official URL: http://doi.org/10.1016/j.ipl.2015.11.017

Related URL: http://dx.doi.org/10.1016/j.ipl.2015.11.017

Abstract

We show that Level-ordered Q-resolution and Tree-like Q-resolution, two restrictions of the Q-resolution system for proving false QBFs false, are incomparable. While the∀ Exp+ Res system is known to p-simulate Tree-like Q-resolution, we observe that it cannot p-simulate Level-ordered Q-resolution.

Item Type:Article
Source:Copyright of this article belongs to Elsevier B.V.
Keywords:Computational complexity; Proof complexity; Quantified Boolean formulas (QBF); Resolution
ID Code:128015
Deposited On:14 Oct 2022 11:27
Last Modified:14 Oct 2022 11:27

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