(Schöning 38) Given is the following resolution graph where C₁,..., C7 are Horn clauses. Show that this tree can be made linear, such that the clause C7 can be obtained from C₁, C2, C3, C4 in the following way: Cis Cis C5 C2 C6 C7 C7 where {11, 12, 13, 14} = {1, 2,3,4} and C", C" are certain suitably chosen Horn clauses. Can you generalize this result?

(Schöning 38) Given is the following resolution graph where C₁,..., C7 are Horn clauses. Show that this tree can be made linear, such that the clause C7 can be obtained from C₁, C2, C3, C4 in the following way: Cis Cis C5 C2 C6 C7 C7 where {11, 12, 13, 14} = {1, 2,3,4} and C", C" are certain suitably chosen Horn clauses. Can you generalize this result?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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