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doc-src/Tutorial/Misc/natsum
author
paulson
Mon, 02 Feb 2004 12:23:46 +0100
changeset 14371
c78c7da09519
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Conversion of HyperNat to Isar format and its declaration as a semiring
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"