doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Mon, 11 Sep 2000 18:00:47 +0200
changeset 9924 3370f6aa3200
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