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IEICE TRANSACTIONS on Information

A Note on Approximating Inclusion-Exclusion for k-CNF Formulas

Akihiro MATSUURA

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Summary :

The number of satisfying assignments of k-CNF formulas is computed using the inclusion-exclusion formula for sets of clauses. Recently, it was shown that the information on the sets of clauses of size log k + 2 already uniquely determines the number of satisfying assignments of k-CNF formulas. The proof was, however, only existential and no explicit procedure was presented. In this paper, we show that such a procedure exists.

Publication
IEICE TRANSACTIONS on Information Vol.E88-D No.1 pp.100-102
Publication Date
2005/01/01
Publicized
Online ISSN
DOI
10.1093/ietisy/e88-d.1.100
Type of Manuscript
Special Section LETTER (Special Section on Foundations of Computer Science)
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