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doc-src/Tutorial/Misc/natsum
author
paulson
Mon, 12 Nov 2001 10:56:38 +0100
changeset 12156
d2758965362e
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
new-style numerals without leading #, along with generic 0 and 1
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"