doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Tue, 19 Sep 2000 23:50:43 +0200
changeset 10029 b889474af53f
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;

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