doc-src/Tutorial/Misc/NatSum.thy
author paulson
Wed, 19 Jul 2000 12:33:36 +0200
changeset 9392 c8e6529cc082
parent 5377 efb799c5ed3c
permissions -rw-r--r--
changed / to // for quotienting

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