Some anti-Evolutionists have received degrees in various sciences. But how legitimate are those degrees?

They get degrees in geology, but still believe the earth is only six thousand years old. Likewise with other sciences... suppose, for the sake of argument, that I held a firm and unwavering religious belief that 2+2=5, not 4...if I got a degree in mathematics, but still believed that 2+2=5, wouldn't my degree be worthless, since I don't accept the normative rules of mathematics? The fact that I could still think 2+2=5 after getting the degree shows that I didn't learn anything from the course! In order to get such a degree, I'd have to either give answers I thought were false on the tests in order to p (i.e. answering 2+2=4, when I really think it's 5), or I'd have to attend a college run by people who also thought 2+2=5, and therfore would give me a ping grade when I gave that answer! But since nobody outside the college does math that way, woudn't my degree be bogus?