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authorSimon-Kor <52245124+Simon-Kor@users.noreply.github.com>2024-06-25 00:02:04 +0200
committerSimon-Kor <52245124+Simon-Kor@users.noreply.github.com>2024-06-25 00:02:04 +0200
commitc9ed022c35cdc13bba4cc2b624295ea80b38d0a7 (patch)
treee15cb97be1c86c102cce575407fd39e4a4b7c4f9 /library
parentacbde8031d18ff5ccbdb2842f57cbe1c628de0d0 (diff)
Improvement for the ATP proof time
Diffstat (limited to 'library')
-rw-r--r--library/relation.tex3
1 files changed, 3 insertions, 0 deletions
diff --git a/library/relation.tex b/library/relation.tex
index b5aebcd..4c4065f 100644
--- a/library/relation.tex
+++ b/library/relation.tex
@@ -422,6 +422,9 @@
\begin{proposition}\label{fld_cons}
$\fld{(\cons{(a,b)}{R})} = \cons{a}{\cons{b}{\fld{R}}}$.
\end{proposition}
+\begin{proof}
+ Follows by set extensionality.
+\end{proof}
\begin{proposition}\label{fld_union}
$\fld{(A\union B)} = \fld{A}\union\fld{B}$.