doc-src/Tutorial/Misc/NatSum.ML
author nipkow
Fri, 18 May 2001 12:09:13 +0200
changeset 11306 6f4ed75b2dca
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added comments

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