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doc-src/Tutorial/Misc/NatSum.ML
author
wenzelm
Wed, 06 Oct 1999 18:50:40 +0200
changeset 7760
43f8d28dbc6e
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Isar_examples/W_correct;
Goal "sum n + sum n = n*(Suc n)";
by(induct_tac "n" 1);
by(Auto_tac);