I did not attempt to provide six citations. I provided a six-step argument (evidence), added footnotes to each step to explain why that step holds (evidence) and some of these footnotes contained citations to works (also evidence) that support the step.

You also didn't seem to be very interested in the book, since you couldn't find it on the internet: https://mises.org/system/tdf/Henry%20Hazlitt%20Economics%20i...

Your problem seems to be that you conflate evidence (something that gives you more information) with citations (a means to point to evidence someone else has already collected). When someone asks for evidence, they don't necessarily need citations. You could just refer to something they already know, and provide a logical argument from there. That is also why I didn't bother linking to a mathematics textbook for [2], since I'm pretty sure you have already been exposed to the necessary concepts.