src/FOL/FOL_lemmas2.ML
author wenzelm
Sun, 15 Oct 2000 19:50:35 +0200
changeset 10220 2a726de6e124
parent 9264 051592f4236a
permissions -rw-r--r--
proper symbol markup with \isamath, \isatext; support sub/super scripts:


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