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doc-src/Tutorial/Misc/NatSum.ML
author
wenzelm
Thu, 14 Sep 2000 17:24:46 +0200
changeset 9956
e75e6a603e71
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
added /usr/share/emacs/ProofGeneral/isar/interface choice;
Goal "sum n + sum n = n*(Suc n)";
by(induct_tac "n" 1);
by(Auto_tac);