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src/FOL/FOL_lemmas2.ML
author
wenzelm
Thu, 22 Nov 2001 17:13:06 +0100
changeset 12265
6df58e87ec91
parent 9264
051592f4236a
permissions
-rw-r--r--
recovered original "make"; added "fields" operation; renamed "derived_defs" to "defs";
Goal "[| EX! z. P(a,z); P(a,b); P(a,c) |] ==> b = c";
by (Blast_tac 1);
qed "ex1_functional";