changeset 3947 | eb707467f8c5 |
parent 1558 | 9c6ebfab4e05 |
child 8882 | 9df44a4f1bf7 |
3946:34152864655c | 3947:eb707467f8c5 |
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6 The Knaster-Tarski Theorem |
6 The Knaster-Tarski Theorem |
7 *) |
7 *) |
8 |
8 |
9 Lfp = mono + Prod + |
9 Lfp = mono + Prod + |
10 |
10 |
11 global |
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12 |
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11 constdefs |
13 constdefs |
12 lfp :: ['a set=>'a set] => 'a set |
14 lfp :: ['a set=>'a set] => 'a set |
13 "lfp(f) == Inter({u. f(u) <= u})" (*least fixed point*) |
15 "lfp(f) == Inter({u. f(u) <= u})" (*least fixed point*) |
14 |
16 |
17 local |
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18 |
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15 end |
19 end |