doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Thu, 28 Sep 2000 23:00:55 +0200
changeset 10114 b07ed0c2f89f
parent 5377 efb799c5ed3c
permissions -rw-r--r--
tuned;

NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end