started a subdir for the book

1 files changed, 17 insertions, 0 deletions

diff --git a/book/examples/chapter9/Anaphora.gf b/book/examples/chapter9/Anaphora.gf
new file mode 100644
index 000000000..5cbb92c94
--- /dev/null
+++ b/book/examples/chapter9/Anaphora.gf
@@ -0,0 +1,17 @@
+abstract Anaphora = TestSemantics - [she_NP] ** {
+
+cat
+  Proof Prop ;
+
+fun
+  IfS : (A : S) -> (Proof (iS A) -> S) -> S ;
+
+  AnaNP : (A : CN) -> (a : Ind) -> Proof (iCN A a) -> NP ;
+
+  pe : (B : Ind -> Prop) -> Proof (Exist B) -> Ind ;
+  qe : (B : Ind -> Prop) -> (c : Proof (Exist B)) -> Proof (B (pe B c)) ;
+
+  pc : (A,B : Prop) -> Proof (And A B) -> Proof A ;
+  qc : (A,B : Prop) -> Proof (And A B) -> Proof B ;
+
+}