doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Sat, 24 Nov 2001 17:21:47 +0100
changeset 12294 2ef49890aede
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fixed SML/NJ error (!?);

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