doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Mon, 04 Oct 1999 21:46:49 +0200
changeset 7705 222b715b5d24
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Tools/typedef_package.ML;

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