diff --git a/docs/model.tex b/docs/model.tex
index 2b8984db03c4fabac97153c623870bd1452f0657..772089a25b3604bd7bd32df939faeb651a3993db 100644
--- a/docs/model.tex
+++ b/docs/model.tex
@@ -117,6 +117,7 @@ We can now define \emph{semantic} logical entailment.
 \forall \rs \in \monoid.\; 
 \forall \venv \in \Sem{\vctx},\;
 \\&
+n \in \mval(\rs) \land
 n \in \Sem{\vctx \proves \prop : \Prop}_\venv(\rs)
 \Ra n \in \Sem{\vctx \proves \propB : \Prop}_\venv(\rs)
 \end{aligned}