Double-branched sequence question

[enbea]

Hi all, I have a question about double-branched sequences. Here is an example:

Y is inspected before both X and Z are inspected.

Solution: Y > X/Z
(X over Z with dotted horizontal line as represented in Powerscore materials)

Additionally, Not Laws represent Not X and Not Z under the position 1 and Not Y under both positions 5 and 6.

My question is: How can you know with certainty that Y is not in position 5? It never states that this is a 1:1 relationship. Thus, X and Z can both be in position 6, which would make it acceptable for Y to be in position 5.

I appreciate any help in providing some clarification on this.

Thanks!

[Dave Killoran]

Hi Enbea,

Thanks for the question! I believe that prior to that discussion, I mentioned that the following discussion would assume a 1-to-1, hence that inference can be drawn. If that wasn't stated in a game, you'd be 100% correct and you wouldn't know that for sure.

Please let me know if that helps. Thanks!