doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Sun, 14 Oct 2001 22:05:46 +0200
changeset 11768 48bc55f43774
parent 5377 efb799c5ed3c
permissions -rw-r--r--
unified rewrite/rewrite_cterm/simplify interface;

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