At: tag sublist layer 1
1. E: TaggedEventStruct
2. m: Label
tr_1,tr_2:|E| List. tr_1 = tr_2 ![](FONT/eq.png)
( < tr_1 > _m ((delayableR(E)
asyncR(E))^*) < tr_2 > _m)
By:
Auto
THEN
HypSubst -1 0
THEN
BackThru
Thm*
x,y:T, R:(T![](FONT/dash.png)
T![](FONT/dash.png)
Prop). x = y ![](FONT/eq.png)
(x (R^*) y)
Generated subgoals:None
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