src/HOL/ex/NatSum.thy
changeset 1376 92f83b9d17e1
parent 969 b051e2fc2e34
child 1476 608483c2122a
     1.1 --- a/src/HOL/ex/NatSum.thy	Thu Nov 30 12:58:44 1995 +0100
     1.2 +++ b/src/HOL/ex/NatSum.thy	Fri Dec 01 12:03:13 1995 +0100
     1.3 @@ -7,7 +7,7 @@
     1.4  *)
     1.5  
     1.6  NatSum = Arith +
     1.7 -consts sum     :: "[nat=>nat, nat] => nat"
     1.8 +consts sum     :: [nat=>nat, nat] => nat
     1.9  rules  sum_0      "sum f 0 = 0"
    1.10         sum_Suc    "sum f (Suc n) = f(n) + sum f n"
    1.11  end