From 20bb3cf2a529ddf6a6af4ede8e1d55856da62f7b Mon Sep 17 00:00:00 2001
From: gapry <gapry@protonmail.com>
Date: Tue, 27 Feb 2024 20:32:41 +0800
Subject: [PATCH] Jirka_RA: Solution: Exercise 0.3.9

---
 Books/Jirka_RA/Chapter00/Ex0_3/ex09.gapry.tex | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Books/Jirka_RA/Chapter00/Ex0_3/ex09.gapry.tex

diff --git a/Books/Jirka_RA/Chapter00/Ex0_3/ex09.gapry.tex b/Books/Jirka_RA/Chapter00/Ex0_3/ex09.gapry.tex
new file mode 100644
index 0000000..7bb6219
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+++ b/Books/Jirka_RA/Chapter00/Ex0_3/ex09.gapry.tex
@@ -0,0 +1,16 @@
+\subsubsection*{Exercise 0.3.9. (Gapry)}
+
+\begin{description}
+\item[] a) $\mathcal{P}(S) = \{ \emptyset \}$
+\item[] b) $\mathcal{P}(S) = \{ \emptyset, \{1\} \}$
+\item[] c) $\mathcal{P}(S) = \{ \emptyset, \{1\}, \{2\}, \{1, 2\} \}$
+\item[] d) $\mathcal{P}(S) = \{          
+  \emptyset,                             \\
+  \{1\}, \{2\}, \{3\}, \{4\},            \\
+  \{1, 2\}, \{1, 3\}, \{1, 4\},          \\
+  \{2, 3\}, \{2, 4\},                    \\
+  \{3, 4\},                              \\
+  \{1, 2, 3\}, \{1, 2, 4\}, \{1, 3, 4\}, \\ 
+  \{2, 3, 4\},                           \\
+  \{1, 2, 3, 4\}\}$
+\end{description}