| author | wenzelm |
| Sat, 21 Nov 1998 12:17:18 +0100 | |
| changeset 5944 | dcc446da8e19 |
| parent 2073 | fb0655539d05 |
| child 17481 | 75166ebb619b |
| permissions | -rw-r--r-- |
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(* Title: Modal/modal0 |
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ID: $Id$ |
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Author: Martin Coen |
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Copyright 1991 University of Cambridge |
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*) |
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structure Modal0_rls = |
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struct |
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val rewrite_rls = [Modal0.strimp_def,Modal0.streqv_def]; |
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local |
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val iffR = prove_goal thy |
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"[| $H,P |- $E,Q,$F; $H,Q |- $E,P,$F |] ==> $H |- $E, P <-> Q, $F" |
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(fn prems=> |
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[ (rewtac iff_def), |
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(REPEAT (resolve_tac (prems@[conjR,impR]) 1)) ]); |
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val iffL = prove_goal thy |
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"[| $H,$G |- $E,P,Q; $H,Q,P,$G |- $E |] ==> $H, P <-> Q, $G |- $E" |
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(fn prems=> |
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[ rewtac iff_def, |
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(REPEAT (resolve_tac (prems@[conjL,impL,basic]) 1)) ]) |
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in |
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val safe_rls = [basic,conjL,conjR,disjL,disjR,impL,impR,notL,notR,iffL,iffR]; |
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val unsafe_rls = [allR,exL]; |
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val bound_rls = [allL,exR]; |
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end |
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end; |