doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Thu, 21 Feb 2002 18:19:34 +0100
changeset 12916 4ac388e02b74
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated title;

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