From e7439d65b0e153434d3acc07df6e2a0972ee79ca Mon Sep 17 00:00:00 2001
From: aarne <aarne@chalmers.se>
Date: Tue, 11 Jan 2011 15:46:43 +0000
Subject: gf-book web page index and toc

---
 book/examples/chapter6/Nat.gf | 22 ----------------------
 1 file changed, 22 deletions(-)
 delete mode 100644 book/examples/chapter6/Nat.gf

(limited to 'book/examples/chapter6/Nat.gf')

diff --git a/book/examples/chapter6/Nat.gf b/book/examples/chapter6/Nat.gf
deleted file mode 100644
index ba0dfe4a1..000000000
--- a/book/examples/chapter6/Nat.gf
+++ /dev/null
@@ -1,22 +0,0 @@
-abstract Nat = {
-  cat
-    Prop ;                        -- proposition
-    Nat ;                         -- natural number
-  data
-    Zero : Nat ;                  -- 0
-    Succ : Nat -> Nat ;           -- the successor of x
-  fun
-    Even : Nat -> Prop ;          -- x is even
-    And  : Prop -> Prop -> Prop ; -- A and B
-
-  fun one : Nat ;
-  def one = Succ Zero ;
-
-  fun twice : Nat -> Nat ;
-  def twice x = plus x x ;
-
-  fun plus : Nat -> Nat -> Nat ;
-  def 
-    plus x Zero = x ;
-    plus x (Succ y) = Succ (plus x y) ;
-}
-- 
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