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Diffstat (limited to 'test/examples/formula.tex')
| -rw-r--r-- | test/examples/formula.tex | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/examples/formula.tex b/test/examples/formula.tex index c029402..e3b1e29 100644 --- a/test/examples/formula.tex +++ b/test/examples/formula.tex @@ -5,3 +5,7 @@ \begin{proposition}\label{formula_test_exists} $\exists x, y. x = y$. \end{proposition} + +\begin{proposition}\label{formula_test_not_exists} + $\exists x, y. x = y$ if and only if not $\exists x. x \neq x$. +\end{proposition} |