doc-src/Tutorial/Misc/NatSum.ML
author wenzelm
Sat, 01 Jul 2000 19:49:20 +0200
changeset 9226 cbe6144f0f15
parent 5377 efb799c5ed3c
permissions -rw-r--r--
tuned;
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);