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src/FOL/FOL_lemmas2.ML
author
paulson
Mon, 06 Nov 2000 16:41:39 +0100
changeset 10397
e2d0dda41f2c
parent 9264
051592f4236a
permissions
-rw-r--r--
auto update
Goal "[| EX! z. P(a,z); P(a,b); P(a,c) |] ==> b = c";
by (Blast_tac 1);
qed "ex1_functional";