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doc-src/Tutorial/Misc/NatSum.thy
author
wenzelm
Wed, 09 Jan 2002 14:25:17 +0100
changeset 12683
99c662efd2fd
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
tuned;
NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end