Give (without proof) a ratonal expression for the the following languages via (a, b: 1. The language of all words that

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
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Give (without proof) a ratonal expression for ther die
the following languages via (a, b}.
1. The language ofall words that <ontain neither aA Nor u AS A Partial word.
2. The language of all words whose length is divisible by 3.
3. The language of all words in which a o<curs exactly 4 timesi
Transcribed Image Text:Give (without proof) a ratonal expression for ther die the following languages via (a, b}. 1. The language ofall words that <ontain neither aA Nor u AS A Partial word. 2. The language of all words whose length is divisible by 3. 3. The language of all words in which a o<curs exactly 4 timesi
; Geben Sie (ohne Beweis) einen rationalen Ausdruck für die
folgenden Sprachen über {a, b} an:
1. Die Sprache aller Wörter, die weder aa noch bb als Teilwort enthalten.
2. Die Sprache aller Wörter, deren Länge durch 3 teilbar ist.
3. Die Sprache aller Wörter, in denen a genau 4 Mal vorkommt.
Transcribed Image Text:; Geben Sie (ohne Beweis) einen rationalen Ausdruck für die folgenden Sprachen über {a, b} an: 1. Die Sprache aller Wörter, die weder aa noch bb als Teilwort enthalten. 2. Die Sprache aller Wörter, deren Länge durch 3 teilbar ist. 3. Die Sprache aller Wörter, in denen a genau 4 Mal vorkommt.
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