doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Sun, 23 Jul 2000 12:01:05 +0200
changeset 9408 d3d56e1d2ec1
parent 5377 efb799c5ed3c
permissions -rw-r--r--
classical atts now intro! / intro / intro?;

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