doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Thu, 17 Jan 2002 21:03:29 +0100
changeset 12801 a94cef8982cc
parent 5377 efb799c5ed3c
permissions -rw-r--r--
renamed norm_hhf to norm_hhf_rule; removed slow rewrite_cterm;

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