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1 (* Title: HOL/IOA/example/Action.thy |
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2 ID: $Id$ |
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3 Author: Tobias Nipkow & Konrad Slind |
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4 Copyright 1994 TU Muenchen |
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5 |
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6 The set of all actions of the system |
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7 *) |
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8 |
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9 Action = Packet + |
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10 datatype 'm action = S_msg ('m) | R_msg ('m) |
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11 | S_pkt ('m packet) | R_pkt ('m packet) |
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12 | S_ack (bool) | R_ack (bool) |
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13 | C_m_s | C_m_r | C_r_s | C_r_r ('m) |
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14 end |