Kant on Math and Science

Right in the beginning of his 3rd part, Kant explains an overview of what he will discuss in this chapter when he says, "Pure mathmatics and pure natural science had no need for such a deduction (as has been made for both) for the sake of their own safety and certainty. For the former rests upon its own evidence, and the latter (though sprung from pure sources of the understanding) upon experience and its thorough confirmation." I see this as kind of what Hume was saying in his book about how math and science are solidified proof, and can't be taken for anything else because they are there in front of you, there is nothing you have to think critically about to analyze them.