| author | paulson |
| Tue, 27 Jul 1999 18:52:48 +0200 | |
| changeset 7094 | 6f18ae72a90e |
| parent 6456 | 23602e214ebf |
| child 7117 | 37eccadf6b8a |
| permissions | -rw-r--r-- |
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(* Title: LK/LK |
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ID: $Id$ |
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Author: Lawrence C Paulson, Cambridge University Computer Laboratory |
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Copyright 1993 University of Cambridge |
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a new theory containing just an axiom needed to derive imp_cong
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Axiom to express monotonicity (a variant of the deduction theorem). Makes the |
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6f18ae72a90e
a new theory containing just an axiom needed to derive imp_cong
paulson
parents:
6456
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link between |- and ==>, needed for instance to prove imp_cong. |
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New unified treatment of sequent calculi by Sara Kalvala
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a new theory containing just an axiom needed to derive imp_cong
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CANNOT be added to LK0.thy because modal logic is built upon it, and |
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6f18ae72a90e
a new theory containing just an axiom needed to derive imp_cong
paulson
parents:
6456
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various modal rules would become inconsistent. |
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New unified treatment of sequent calculi by Sara Kalvala
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parents:
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*) |
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New unified treatment of sequent calculi by Sara Kalvala
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a new theory containing just an axiom needed to derive imp_cong
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parents:
6456
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LK = LK0 + |
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New unified treatment of sequent calculi by Sara Kalvala
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New unified treatment of sequent calculi by Sara Kalvala
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rules |
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monotonic "($H |- P ==> $H |- Q) ==> $H, P |- Q" |
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New unified treatment of sequent calculi by Sara Kalvala
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end |