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ex/Finite.thy
author lcp
Wed, 01 Dec 1993 13:05:25 +0100
changeset 22 17b6487e1ac7
parent 0 7949f97df77a
permissions -rw-r--r--
HOL/llist/LList_corec_subset1: does not need induction

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