Question
Show that the relationship in Lemma 6.19 also holds if messages can get lost in the channel pq, but not if messages can be duplicated. What step in the proof fails if messages can be duplicated?
Step 1
19, we are considering a system with two processes p and q, and a channel pq between them. The lemma states that if messages cannot be lost in the channel pq, then if process p sends a message m to process q, and then process q sends a message m' to process p, then Show more…
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