src/CCL/ex/Nat.thy
changeset 1149 5750eba8820d
parent 0 a5a9c433f639
child 1474 3f7d67927fe2
--- a/src/CCL/ex/Nat.thy	Wed Jun 21 11:35:10 1995 +0200
+++ b/src/CCL/ex/Nat.thy	Wed Jun 21 15:01:07 1995 +0200
@@ -21,18 +21,18 @@
 
   add_def     "a #+ b == nrec(a,b,%x g.succ(g))"
   mult_def    "a #* b == nrec(a,zero,%x g.b #+ g)"
-  sub_def     "a #- b == letrec sub x y be ncase(y,x,%yy.ncase(x,zero,%xx.sub(xx,yy))) \
-\                        in sub(a,b)"
-  le_def     "a #<= b == letrec le x y be ncase(x,true,%xx.ncase(y,false,%yy.le(xx,yy))) \
-\                        in le(a,b)"
+  sub_def     "a #- b == letrec sub x y be ncase(y,x,%yy.ncase(x,zero,%xx.sub(xx,yy))) 
+                        in sub(a,b)"
+  le_def     "a #<= b == letrec le x y be ncase(x,true,%xx.ncase(y,false,%yy.le(xx,yy))) 
+                        in le(a,b)"
   lt_def     "a #< b == not(b #<= a)"
 
-  div_def    "a ## b == letrec div x y be if x #< y then zero else succ(div(x#-y,y)) \
-\                       in div(a,b)"
+  div_def    "a ## b == letrec div x y be if x #< y then zero else succ(div(x#-y,y)) 
+                       in div(a,b)"
   ack_def    
-  "ackermann(a,b) == letrec ack n m be ncase(n,succ(m),%x. \
-\                          ncase(m,ack(x,succ(zero)),%y.ack(x,ack(succ(x),y))))\
-\                    in ack(a,b)"
+  "ackermann(a,b) == letrec ack n m be ncase(n,succ(m),%x. 
+                          ncase(m,ack(x,succ(zero)),%y.ack(x,ack(succ(x),y))))
+                    in ack(a,b)"
 
 end