SIAMCOMP
2000
13 years 6 months ago
2000
An exponential lower bound for the size of tree-like cutting planes refutations of a certain family of conjunctive normal form (CNF) formulas with polynomial size resolution refuta...
FOCS
1998
IEEE
13 years 10 months ago
1998
IEEE
We prove an exponential lower bound for tree-like Cutting Planes refutations of a set of clauses which has polynomial size resolution refutations. This implies an exponential sepa...