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doc-src/Tutorial/Misc/NatSum.thy
author
wenzelm
Thu, 05 Aug 1999 22:11:07 +0200
changeset 7178
50b9849cf6ad
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
record_simproc for sel-upd (by Sebastian Nanz); removed record_splitter by default;
NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end