--- a/doc-src/IsarAdvanced/Codegen/Thy/examples/bool_infix.ML Fri Mar 02 15:43:16 2007 +0100
+++ b/doc-src/IsarAdvanced/Codegen/Thy/examples/bool_infix.ML Fri Mar 02 15:43:17 2007 +0100
@@ -1,24 +1,15 @@
structure ROOT =
struct
-structure HOL =
-struct
-
-fun nota false = true
- | nota true = false;
-
-end; (*struct HOL*)
-
structure Nat =
struct
datatype nat = Zero_nat | Suc of nat;
-fun less_nat Zero_nat (Suc n) = true
+fun less_nat n (Suc m) = less_eq_nat n m
| less_nat n Zero_nat = false
- | less_nat (Suc m) (Suc n) = less_nat m n;
-
-fun less_eq_nat m n = HOL.nota (less_nat n m);
+and less_eq_nat (Suc n) m = less_nat n m
+ | less_eq_nat Zero_nat m = true;
end; (*struct Nat*)