doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Thu, 22 Apr 2004 11:01:34 +0200
changeset 14651 02b8f3bcf7fe
parent 5377 efb799c5ed3c
permissions -rw-r--r--
improved notation;

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