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doc-src/Tutorial/Misc/natsum
author
wenzelm
Fri, 04 Jun 1999 19:57:31 +0200
changeset 6779
2912aff958bd
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Calculation.thy: Setup transitivity rules for calculational proofs.
consts sum :: nat => nat
primrec
"sum 0 = 0"
"sum (Suc n) = Suc n + sum n"