Define the rule echo(LST0. LST1). This rule determines when LST1 is a list of duplicates of all the elements of LSTO. e.g.: |?- echo([a]. A). A = [a.a] ? : no |?- echo([a, b]. A). A = [a.a.b.b] ? : no |?- echo(a. A). no
Define the rule echo(LST0. LST1). This rule determines when LST1 is a list of duplicates of all the elements of LSTO. e.g.: |?- echo([a]. A). A = [a.a] ? : no |?- echo([a, b]. A). A = [a.a.b.b] ? : no |?- echo(a. A). no
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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