doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Thu, 13 Jul 2000 23:07:10 +0200
changeset 9306 d0ef4a41ae63
parent 5377 efb799c5ed3c
permissions -rw-r--r--
defs (overloaded);

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