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Level-ordered \(Q\)-resolution and tree-like \(Q\)-resolution are incomparable. (English) Zbl 1348.03056

Summary: 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 \(\forall\mathsf{Exp}+\mathsf{Res}\) system is known to \(p\)-simulate Tree-like \(Q\)-resolution, we observe that it cannot \(p\)-simulate Level-ordered \(Q\)-resolution.

MSC:

03F20 Complexity of proofs
68Q25 Analysis of algorithms and problem complexity

Software:

RAReQS
Full Text: DOI

References:

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