doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Sat, 25 Sep 1999 13:08:08 +0200
changeset 7600 73f91da46230
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Proof.reset_thms calculationN;

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