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doc-src/Tutorial/Misc/NatSum.thy
author
wenzelm
Thu, 08 Aug 2002 23:51:24 +0200
changeset 13486
54464ea94d6f
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
exception SIMPROC_FAIL: solid error reporting of simprocs;
NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end