doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Tue, 03 Oct 2000 01:15:11 +0200
changeset 10132 8e9a8ede2f11
parent 5377 efb799c5ed3c
permissions -rw-r--r--
updated;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset
     1
Goal "sum n + sum n = n*(Suc n)";
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset
     2
by(induct_tac "n" 1);
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset
     3
by(Auto_tac);