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doc-src/Tutorial/Misc/NatSum.thy
author
nipkow
Sat, 08 Jul 2000 19:14:43 +0200
changeset 9282
0181ac100520
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Defs are now checked for circularity (if not overloaded).
NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end