doc-src/Tutorial/Misc/NatSum.thy
author oheimb
Mon, 10 Sep 2001 18:31:24 +0200
changeset 11560 46d0bde121ab
parent 5377 efb799c5ed3c
permissions -rw-r--r--
marginally improved comments

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