src/FOL/FOL_lemmas2.ML
author wenzelm
Fri, 04 Aug 2000 22:54:49 +0200
changeset 9525 46fb9ccae463
parent 9264 051592f4236a
permissions -rw-r--r--
lemmas atomize = all_eq imp_eq;


Goal "[| EX! z. P(a,z);  P(a,b);  P(a,c) |] ==> b = c";
  by (Blast_tac 1);
qed "ex1_functional";