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Translation to LTL/CTL

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Exam : 21.08.2018 : Problem 9 c part 2 : 2018.08.21.vrs.solutions.pdf (uni-kl.de)

My Solution:

The results differ as AG!a & AFb is not equal to AG!a & AGb.

Where did I get wrong ?

What I have to be careful about while solving ?

in * TF "Emb. Sys. and Rob." by (2.9k points)

1 Answer

+1 vote
 
Best answer
If "a" is always false, then you can replace [a WU b] by "b" but not with "G b" as you did.
by (166k points)
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Understood now.
Thanks for the clarification.
by (2.9k points)

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