fix typo

docs/paradoxes.tex

@@ -79,7 +79,7 @@ With this lemma in hand, the proof of \thmref{thm:counterexample-1} is simple.
 \label{app:section:invariants-without-a-later}
 
 Now we come to the main paradox: if we remove the $\later$ from \ruleref{inv-open}, the logic becomes inconsistent.
-The theorem is stated as general as possible so taht it also applies to previous, less powerful versions of Iris.
+The theorem is stated as general as possible so that it also applies to previous, less powerful versions of Iris.
 
 \begin{thm}
   \label{thm:counterexample-2}