doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Wed, 03 Oct 2001 21:03:05 +0200
changeset 11659 a68f930bafb2
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Tools/induct_attrib.ML now part of Pure;

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