doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Fri, 17 Nov 2000 18:48:00 +0100
changeset 10482 41de88cb2108
parent 5377 efb799c5ed3c
permissions -rw-r--r--
UNIV_witness;

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