| author | wenzelm |
| Thu, 14 Oct 1999 15:04:36 +0200 | |
| changeset 7866 | 3ccaa11b6df9 |
| parent 4905 | be73ddff6c5a |
| child 17248 | 81bf91654e73 |
| permissions | -rw-r--r-- |
| 4905 | 1 |
|
2 |
val asms = goal thy "[| f(p) << p; !!q. f(q) << q ==> p << q |] ==> FIX(f)=p"; |
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by (rewtac eq_def); |
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by (rtac conjI 1); |
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by (induct_tac "f" 1); |
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by (rtac minimal 1); |
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by (strip_tac 1); |
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by (rtac less_trans 1); |
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by (resolve_tac asms 2); |
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by (etac less_ap_term 1); |
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by (resolve_tac asms 1); |
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by (rtac (FIX_eq RS eq_imp_less1) 1); |
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qed "example"; |