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2023-12-09 18:17:22 -08:00
parent a5362a2eb9
commit 6a5e02a8ac
27 changed files with 36 additions and 33 deletions

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@ -112,7 +112,7 @@ Define $\{-2, 2\}$ in $S$.
\problem{}
Let $P$ be the set of all subsets of $\mathbb{Z}^+_0$. This is called a \textit{power set}. \par
Let $S$ be the stucture $( P ~|~ \{\subseteq\})$ \par
Let $S$ be the structure $( P ~|~ \{\subseteq\})$ \par
\problempart{}
Show that the empty set is definable in $S$. \par