## Abstract

A new temporal logic and interpretation are suggested which have features from linear temporal logic, branching time temporal logic, and partial order temporal logic. The new logic can describe properties essential to the specification and correctness proofs of distributed algorithms such as those for global snapshots. It is also appropriate for the justification of proof rules and giving temporal semantics to properties such as layering of a program. These properties cannot be described with existing temporal logics. The semantic model of the logic is based on a set of sets of interleaving sequences which reflect partial orders from the underlying semantics of the computational model. For the common partial order derived from sequentiality in execution of each process, the logic will distinguish between nondeterminism due to the parallel execution and nondeterminism due to local nondeterministic choices. The difference in expressive power is thus qualitative, and not merely due to the presence or absence of a particular temporal operator. In the logic, theorems are proven which clarify when it is possible to establish a property P for some of the interleaving computations, and yet conclude the truth of P for every interleaving.

Original language | English |
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Title of host publication | Proceedings of the 6th Annual ACM Symposium on Principles of Distributed Computing, PODC 1987 |

Editors | Fred B. Schneider |

Publisher | Association for Computing Machinery |

Pages | 178-190 |

Number of pages | 13 |

ISBN (Electronic) | 089791239X |

DOIs | |

State | Published - 1 Dec 1987 |

Externally published | Yes |

Event | 6th Annual ACM Symposium on Principles of Distributed Computing, PODC 1987 - Vancouver, Canada Duration: 10 Aug 1987 → 12 Aug 1987 |

### Publication series

Name | Proceedings of the Annual ACM Symposium on Principles of Distributed Computing |
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Volume | Part F130235 |

### Conference

Conference | 6th Annual ACM Symposium on Principles of Distributed Computing, PODC 1987 |
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Country/Territory | Canada |

City | Vancouver |

Period | 10/08/87 → 12/08/87 |

### Bibliographical note

Publisher Copyright:© 1987 ACM.