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src/FOL/FOL_lemmas2.ML
author paulson
Tue, 05 Sep 2000 10:11:02 +0200
changeset 9835 543d23cd1259
parent 9264 051592f4236a
permissions -rw-r--r--
meson_tac


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