- #1
spaghetti3451
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Homework Statement
Write formal descriptions of the following sets.
(a) The set containing the numbers 1, 10, and 100
(b) The set containing all integers that are greater than 5
(c) The set containing all natural numbers that are less than 5
(d) The set containing the string aba
(e) The set containing the empty string
(f) The set containing nothing at all
Homework Equations
The Attempt at a Solution
(a) ## \{1, 10, 100 \} ##
(b) ## \{ i\ |\ i \in \mathbb{N}\ \text{and}\ i \geq 5 \} ##
(c) ## \{ 1, 2, 3, 4 \} ##
(d) ## \{ aba \} ##
(e) ## \{ \epsilon \} ##
(f) ## \{ \} ##
Are my answers correct?