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src/FOLP/folp.thy
author wenzelm
Thu, 24 Jan 2002 22:42:14 +0100
changeset 12847 afa356dbcb15
parent 0 a5a9c433f639
permissions -rw-r--r--
fixed subgoal_tac; fails on non-existent subgoal;

FOLP = IFOLP +
consts
  cla :: "[p=>p]=>p"
rules
  classical "(!!x.x:~P ==> f(x):P) ==> cla(f):P"
end
isabelle