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Sufficient & Necessary Conditions

poohbearpoohbear Alum Member
edited October 2014 in Logical Reasoning 496 karma
Hi everyone,

I'm currently reviewing PT 37 that I completed yesterday and I'm on section 2 #12. Even watching JY's video, I'm still a little confused about the "cannot" and "without" in the stimulus. Anyway, I was just wondering-- what do you do when you have two indicators but they're in different groups? Or the way that JY presents it, maybe we're disregarding the "without" for being in group 3? And we're just treating it as a "no"?

I mean, either way, for the two indicators in one sentence issue--I feel like there was a lesson on this or that it was mentioned somewhere, but I can't seem to find it. If anyone could let met know or let me know what lesson it was in, that'd be great. And if you can further explain #12 I'd really appreciate it too! Thank you! :) Happy studying!
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