Block products and nesting negations in FO2
The alternation hierarchy in two-variable first-order logic FO 2 [∈ < ∈] over words was recently shown to be decidable by Kufleitner and Weil, and independently by Krebs and Straubing. In this paper we consider a similar hierarchy, reminiscent of the half levels of the dot-depth hierarchy or the...
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Main Authors: | , , |
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Format: | Default Conference proceeding |
Published: |
2014
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Subjects: | |
Online Access: | https://hdl.handle.net/2134/31982 |
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