The powerset of a set S is defined as the set of all subsets of S (including the empty set). For example, the powerset of {1,2} is {{1,2}, {1}, {2}, {}}. Write an SML function called powerset: 'a lista list list that when given a list representation of a set as input returns its powerset as output.

The powerset of a set S is defined as the set of all subsets of S (including the empty set). For example, the powerset of {1,2} is {{1,2}, {1}, {2}, {}}. Write an SML function called powerset: 'a lista list list that when given a list representation of a set as input returns its powerset as output.

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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The powerset of a set S is defined as the set of all subsets of S (including the empty
set). For example, the powerset of {1,2} is {{1,2}, {1}, {2}, {}}. Write an SML function called powerset:
'a lista list list that when given a list representation of a set as input returns its powerset as output.

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