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doc-src/Tutorial/Misc/NatSum.thy
author paulson
Mon, 22 May 2000 12:27:11 +0200
changeset 8911 c35b74bad518
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fold_commute, fold_nest_Un_Int, setsum_Un and other new results

NatSum = Main +
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"
end
isabelle