From a5300ad062b82154f3f9533e143ea35515e6c39e Mon Sep 17 00:00:00 2001
From: aarne <aarne@cs.chalmers.se>
Date: Tue, 11 Nov 2008 10:28:32 +0000
Subject: tutorial complete with server and js

---
 examples/tutorial/old/semantics/SemBase.hs | 42 ++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 examples/tutorial/old/semantics/SemBase.hs

(limited to 'examples/tutorial/old/semantics/SemBase.hs')

diff --git a/examples/tutorial/old/semantics/SemBase.hs b/examples/tutorial/old/semantics/SemBase.hs
new file mode 100644
index 000000000..b682010e1
--- /dev/null
+++ b/examples/tutorial/old/semantics/SemBase.hs
@@ -0,0 +1,42 @@
+module SemBase where
+
+import Base
+import Logic
+
+-- translation of Base syntax to Logic
+
+iS :: GS -> Prop
+iS s = case s of
+  GPredAP np ap -> iNP np (iAP ap)
+
+iNP :: GNP -> (Exp -> Prop) -> Prop
+iNP np p = case np of
+  GEvery cn -> All   (If  (iCN cn var) (liftProp 0 (p var))) ----
+  GSome  cn -> Exist (And (iCN cn var) (p var)) ----
+  GConjNP c np1 np2 -> iConj c (iNP np1 p) (iNP np2 p)
+  GUseInt (GInt i) -> p (int i)
+
+iAP :: GAP -> Exp -> Prop
+iAP ap e = case ap of
+  GComplA2 a2 np    -> iNP np (iA2 a2 e)
+  GConjAP c ap1 ap2 -> iConj c (iAP ap1 e) (iAP ap2 e)
+  GEven -> ev e
+  GOdd -> Not (ev e)
+
+iCN :: GCN -> Exp -> Prop
+iCN cn e = case cn of
+  GModCN ap cn0 -> And (iCN cn0 e) (iAP ap e)
+  GNumber -> eq e e
+
+iConj :: GConj -> Prop -> Prop -> Prop
+iConj c = case c of
+  GAnd -> And
+  GOr  -> Or
+
+iA2 :: GA2 -> Exp -> Exp -> Prop
+iA2 a2 e1 e2 = case a2 of
+  GGreater -> lt e2 e1
+  GSmaller -> lt e1 e2 
+  GEqual   -> eq e1 e2
+
+var = Var 0
-- 
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