B- Consider the following rules: R1: k(X):-j(X),b(X). R2: f(X):-a(X),not(g(X)). R5: d:-e(X),c. R6: g(X):-h,a(X). R7: g(X):-1. R8: b(X):-c. Suppose we have the following true facts: c, e(3), j(2). Prove the goals: f(X), d using backward chaining? R3: a(X):- b(X),i. R4: d:-i.

B- Consider the following rules: R1: k(X):-j(X),b(X). R2: f(X):-a(X),not(g(X)). R5: d:-e(X),c. R6: g(X):-h,a(X). R7: g(X):-1. R8: b(X):-c. Suppose we have the following true facts: c, e(3), j(2). Prove the goals: f(X), d using backward chaining? R3: a(X):- b(X),i. R4: d:-i.

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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