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doc-src/Tutorial/Misc/NatSum.ML
author
wenzelm
Wed, 13 Oct 1999 19:44:15 +0200
changeset 7858
2cd88d1eec0c
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
isabelle-isar-ref;
Goal "sum n + sum n = n*(Suc n)";
by(induct_tac "n" 1);
by(Auto_tac);