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doc-src/Tutorial/Misc/natsum
author
nipkow
Sun, 25 Jan 2004 00:42:22 +0100
changeset 14360
e654599b114e
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Added an exception handler and error msg.
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"