Created
May 31, 2017 22:49
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| SelectMessages(type, ts) == {m \in msgs : m.type = type /\ m.ts = ts} | |
| Prepare(ts) == /\ SelectMessages("prepare", ts) = {} \* Each timestamp must be unique | |
| /\ msgs' = msgs \union [type: {"prepare"}, acceptor: Acceptors, ts: {ts}] | |
| /\ history' = Append(history, [type |-> "invoke", ts |-> ts]) | |
| /\ UNCHANGED <<ops, acceptorTS, acceptorValTS, acceptorValue>> |
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