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Assume that R and S are both regular expressions, then which one(s) would NOT be true. R + S is a regular expression * R+S is a regular expression * R.S is a regular expression ☐ (R+S)* is a regular expression. None

Assume that R and S are both regular expressions, then which one(s) would NOT be true. R + S is a regular expression * R+S is a regular expression * R.S is a regular expression ☐ (R+S)* is a regular expression. None

Database System Concepts
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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Assume that R and S are both regular expressions, then which one(s) would NOT be true. R + S is a regular expression * R+S is a regular expression * R.S is a regular expression ☐ (R+S)* is a regular expression. None
Transcribed Image Text:Assume that R and S are both regular expressions, then which one(s) would NOT be true. R + S is a regular expression * R+S is a regular expression * R.S is a regular expression ☐ (R+S)* is a regular expression. None
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