doc-src/Tutorial/Misc/NatSum.thy
author nipkow
Fri, 10 Sep 2004 00:19:15 +0200
changeset 15195 197e00ce3f20
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new forward deduction capability for simplifier

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