True or False For any two elements define [a,b] = { {a}, {a,b} } and check the true statements a ∈ [a,b] T [ ] F [ ] {a} ∈ [a,b] T [ ] F [ ] {a.b} ∈ [a,b] T [ ] F [ ] {b} ∈ [a,b] T [ ] F [ ] [a,b] = [b,a] T [ ] F [ ] [a,a] = { {a} } T [ ] F [ ]

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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4.  True or False
For any two elements define [a,b] = { {a}, {a,b} } and check the true statements
a [a,b]                      T [ ] F [ ]
{a} [a,b]                    T [ ] F [ ]
{a.b} [a,b]                 T [ ] F [ ]
{b} [a,b]                    T [ ] F [ ]
[a,b] = [b,a]                  T [ ] F [ ]
[a,a] = { {a} }                T [ ] F [ ]

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