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(* Title: HOL/IOA/example/Spec.thy
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ID: $Id$
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Author: Tobias Nipkow & Konrad Slind
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Copyright 1994 TU Muenchen
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The specification of reliable transmission
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*)
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156
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Spec = List + IOA + Action +
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consts
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spec_sig :: "'m action signature"
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spec_trans :: "('m action, 'm list)transition set"
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spec_ioa :: "('m action, 'm list)ioa"
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168
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defs
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sig_def "spec_sig == <UN m.{S_msg(m)},
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UN m.{R_msg(m)},
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{}>"
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trans_def "spec_trans ==
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{tr. let s = fst(tr);
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t = snd(snd(tr))
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in
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case fst(snd(tr))
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of
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S_msg(m) => t = s@[m] |
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R_msg(m) => s = (m#t) |
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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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C_m_s => False |
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C_m_r => False |
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C_r_s => False |
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C_r_r(m) => False}"
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ioa_def "spec_ioa == <spec_sig, {[]}, spec_trans>"
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end
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