doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Tue, 19 Oct 1999 16:23:46 +0200
changeset 7884 2c65e8212115
parent 5377 efb799c5ed3c
permissions -rw-r--r--
qed_spec_mp is a mess;

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