doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Fri, 28 Sep 2001 14:10:01 +0200
changeset 11617 9ab0792b2da4
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