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ex/finite.thy
author clasohm
Wed, 02 Nov 1994 11:50:09 +0100
changeset 156 fd1be45b64bf
parent 0 7949f97df77a
permissions -rw-r--r--
added IOA to isabelle/HOL

Finite = Lfp +
consts Fin :: "'a set => 'a set set"
rules
 Fin_def "Fin(A) == lfp(%F. insert({}, UN x:A. insert(x)``F))"
end
Old_HOL