ex/finite.thy
author lcp
Tue, 06 Sep 1994 10:56:54 +0200
changeset 135 a06a2d930a03
parent 0 7949f97df77a
permissions -rw-r--r--
HOL/ex/PropLog.thy: tidied

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