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doc-src/Tutorial/Misc/NatSum.thy
author
wenzelm
Thu, 11 Mar 1999 21:56:22 +0100
changeset 6356
6c01697e082e
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
primrec: empty attributes;
NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end