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VRS Exam 2022.02 Problem 1d)

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Hello,

I have a query regarding Forall Algorithm in the last exam (2022.02.16) problem 1(d). How did we get this yellow highlighted term? And why did a => disappeared? Please guide.

in * TF "Emb. Sys. and Rob." by (460 points)

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It is due to the elimination rules of BDDs, the formula above the yellow part is a redundant case distinction that is wiped away in BDDs.
by (166k points)
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That makes sense. I was confused whether we have to use reduction rules while applying/executing the algo or not. Thanks for clarification!
by (460 points)

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