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doc-src/Tutorial/Misc/natsum
author
wenzelm
Wed, 05 Dec 2001 14:32:10 +0100
changeset 12389
23bd419144eb
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
eliminated old use of intro/elim method; tuned;
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"