From c9ed022c35cdc13bba4cc2b624295ea80b38d0a7 Mon Sep 17 00:00:00 2001 From: Simon-Kor <52245124+Simon-Kor@users.noreply.github.com> Date: Tue, 25 Jun 2024 00:02:04 +0200 Subject: Improvement for the ATP proof time --- library/relation.tex | 3 +++ 1 file changed, 3 insertions(+) (limited to 'library/relation.tex') 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} $\fld{(A\union B)} = \fld{A}\union\fld{B}$. -- cgit v1.2.3