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doc-src/Tutorial/Misc/NatSum.ML
author
paulson
Thu, 19 Feb 2004 10:40:28 +0100
changeset 14395
cc96cc06abf9
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
new theorem
Goal "sum n + sum n = n*(Suc n)";
by(induct_tac "n" 1);
by(Auto_tac);