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doc-src/Tutorial/Misc/natsum
author
paulson
Mon, 17 Mar 2003 17:37:20 +0100
changeset 13865
0a6bf71955b0
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
moved one proof, added another
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"