<p>If you plan carefully, it’s absolutely possible to double major and math and CS and take a good number of CogSci courses. This will be easier if you can skip intro CS and took calc BC. But I think your dilemma comes down to the fact that you want to study three different (but related) subjects and it would be very rough to try to get major-level knowledge in all three. Math and CS or CS and cogsci are both reasonable double majors, with overlapping requirements. I haven’t taken cogsci courses myself, but I get the impression that AI is roughly the intersection of CS and cogsci. So perhaps it makes more sense to go down the CS/cogsci route if you are intent on double-majoring and AI.</p>
<p>Keep in mind that declared majors mean virtually nothing at Pomona until you’re a senior, so it’s not exactly a pressing issue at this point. All you need to do is take enough courses now such that you will be able to make the decision later.</p>