doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Fri, 17 Nov 2000 18:48:00 +0100
changeset 10482 41de88cb2108
parent 5377 efb799c5ed3c
permissions -rw-r--r--
UNIV_witness;

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