doc-src/Tutorial/Misc/NatSum.thy
author wenzelm
Tue, 04 Sep 2001 21:10:57 +0200
changeset 11549 e7265e70fd7c
parent 5377 efb799c5ed3c
permissions -rw-r--r--
renamed "antecedent" case to "rule_context";

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