src/FOL/FOL_lemmas2.ML
author wenzelm
Fri, 08 Mar 2002 16:24:06 +0100
changeset 13049 ce180e5b7fa0
parent 9264 051592f4236a
permissions -rw-r--r--
tuned;


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