doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Fri, 05 May 2000 22:23:27 +0200
changeset 8809 85539b33be03
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

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