--- a/src/CCL/ex/Nat.thy Fri Oct 10 16:29:41 1997 +0200
+++ b/src/CCL/ex/Nat.thy Fri Oct 10 17:10:12 1997 +0200
@@ -19,11 +19,11 @@
not_def "not(b) == if b then false else true"
- 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)))
+ 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)))
+ 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)"
@@ -31,7 +31,7 @@
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))))
+ ncase(m,ack(x,succ(zero)),%y. ack(x,ack(succ(x),y))))
in ack(a,b)"
end