doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Fri, 04 Jan 2002 19:29:30 +0100
changeset 12633 ad9277743664
parent 5377 efb799c5ed3c
permissions -rw-r--r--
tuned ``syntax (output)'';

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