doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Tue, 19 Feb 2002 23:49:26 +0100
changeset 12900 2be514a36aec
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Paulson:1989;

Goal "sum n + sum n = n*(Suc n)";
by(induct_tac "n" 1);
by(Auto_tac);