| author | wenzelm |
| Tue, 03 Oct 2000 22:34:49 +0200 | |
| changeset 10143 | 86c39bba873f |
| parent 6468 | a7b1669f5365 |
| child 12218 | 6597093b77e7 |
| permissions | -rw-r--r-- |
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(* Title: HOLCF/IOA/ABP/Impl.thy |
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ID: $Id$ |
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Author: Olaf Mueller |
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Copyright 1995 TU Muenchen |
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The environment |
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*) |
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Env = IOA + Action + |
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types |
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'm env_state = "bool" |
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(* give next bit to system *) |
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consts |
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env_asig :: "'m action signature" |
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env_trans :: ('m action, 'm env_state)transition set
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env_ioa :: ('m action, 'm env_state)ioa
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next :: 'm env_state => bool |
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defs |
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env_asig_def |
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"env_asig == ({Next},
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UN m. {S_msg(m)},
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{})"
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env_trans_def "env_trans == |
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{tr. let s = fst(tr);
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t = snd(snd(tr)) |
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in case fst(snd(tr)) |
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of |
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Next => t=True | |
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S_msg(m) => s=True & t=False | |
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R_msg(m) => False | |
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S_pkt(pkt) => False | |
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R_pkt(pkt) => False | |
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S_ack(b) => False | |
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R_ack(b) => False}" |
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env_ioa_def "env_ioa == |
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(env_asig, {True}, env_trans,{},{})"
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end |
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