On Davis–Putnam reductions for minimally unsatisfiable clause-sets
نویسندگان
چکیده
منابع مشابه
On Davis-Putnam Reductions for Minimally Unsatisfiable Clause-Sets
DP-reduction F ❀ DPv(F ), applied to a clause-set F and a variable v, replaces all clauses containing v by their resolvents (on v). A basic case, where the number of clauses is decreased (i.e., c(DPv(F )) < c(F )), is singular DP-reduction (sDP-reduction), where v must occur in one polarity only once. For minimally unsatisfiable F ∈ MU , sDPreduction produces another F ′ := DPv(F ) ∈ MU with th...
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2013
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2013.04.020