Fix typo

1 files changed, 1 insertions, 1 deletions

diff --git a/mgr.tex b/mgr.tex
index 71e1d8c..56bfdb1 100644
--- a/mgr.tex
+++ b/mgr.tex
@@ -124,7 +124,7 @@ in time $O(m \log m)$ (where $m$ is the size of the question):
 
 Note that though we speak of MSO formulae with second-order variables only,
 first-order variables are supported by simply restricting to questions in which
-sets assigned to single-order variables are singletons. Also note, that for
+sets assigned to first-order variables are singletons. Also note, that for
 formulae with first-order free variables only, question answering happens in
 constant time.