diff -r 000000000000 -r a5a9c433f639 src/Cube/Cube.ML
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Cube/Cube.ML	Thu Sep 16 12:20:38 1993 +0200
@@ -0,0 +1,60 @@
+(*  Title: 	Cube/cube
+    ID:         $Id$
+    Author: 	Tobias Nipkow
+    Copyright   1990  University of Cambridge
+
+For cube.thy.  The systems of the Lambda-cube that extend simple types
+*)
+
+open Cube;
+
+val simple = [s_b,strip_s,strip_b,app,lam_ss,pi_ss];
+
+val L2_thy = extend_theory Cube.thy "L2" ([],[],[],[],[],None)
+[
+  ("pi_bs",  "[| A:[]; !!x. x:A ==> B(x):* |] ==> Prod(A,B):*"),
+
+  ("lam_bs", "[| A:[]; !!x. x:A ==> f(x):B(x); !!x. x:A ==> B(x):* |] \
+\	==> Abs(A,f) : Prod(A,B)")
+];
+
+val lam_bs = get_axiom L2_thy "lam_bs";
+val pi_bs = get_axiom L2_thy "pi_bs";
+
+val L2 = simple @ [lam_bs,pi_bs];
+
+val Lomega_thy = extend_theory Cube.thy "Lomega" ([],[],[],[],[],None)
+[
+  ("pi_bb",  "[| A:[]; !!x. x:A ==> B(x):[] |] ==> Prod(A,B):[]"),
+
+  ("lam_bb", "[| A:[]; !!x. x:A ==> f(x):B(x); !!x. x:A ==> B(x):[] |] \
+\	==> Abs(A,f) : Prod(A,B)")
+];
+
+val lam_bb = get_axiom Lomega_thy "lam_bb";
+val pi_bb = get_axiom Lomega_thy "pi_bb";
+val Lomega = simple @ [lam_bb,pi_bb];
+
+val LOmega_thy = merge_theories(L2_thy,Lomega_thy);
+val LOmega = simple @ [lam_bs,pi_bs,lam_bb,pi_bb];
+
+val LP_thy = extend_theory Cube.thy "LP" ([],[],[],[],[],None)
+[
+  ("pi_sb",  "[| A:*; !!x. x:A ==> B(x):[] |] ==> Prod(A,B):[]"),
+
+  ("lam_sb", "[| A:*; !!x. x:A ==> f(x):B(x); !!x. x:A ==> B(x):[] |] \
+\	==> Abs(A,f) : Prod(A,B)")
+];
+
+val lam_sb = get_axiom LP_thy "lam_sb";
+val pi_sb = get_axiom LP_thy "pi_sb";
+val LP = simple @ [lam_sb,pi_sb];
+
+val LP2_thy = merge_theories(L2_thy,LP_thy);
+val LP2 = simple @ [lam_bs,pi_bs,lam_sb,pi_sb];
+
+val LPomega_thy = merge_theories(LP_thy,Lomega_thy);
+val LPomega = simple @ [lam_bb,pi_bb,lam_sb,pi_sb];
+
+val CC_thy = merge_theories(L2_thy,LPomega_thy);
+val CC = simple @ [lam_bs,pi_bs,lam_bb,pi_bb,lam_sb,pi_sb];