1 files changed, 16 insertions, 0 deletions
diff --git a/old-examples/model/MathI.gf b/old-examples/model/MathI.gf
new file mode 100644
index 000000000..1d049633c
--- /dev/null
+++ b/old-examples/model/MathI.gf
@@ -0,0 +1,16 @@
+incomplete concrete MathI of Math = 
+  open Syntax, Lex in {
+
+  flags startcat = Prop ;
+
+  lincat 
+    Prop = S ;
+    Elem = NP ;
+
+  lin 
+    And x y = mkS and_Conj x y ;
+    Even x = mkS (mkCl x even_A) ;
+    Odd x = mkS (mkCl x odd_A) ;
+    Zero = mkNP zero_PN ;
+
+}