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These kinds of things pop up a lot on HN, so I want to ask: are they helpful to people? I save basically every single one, planning to come back to them (I stud

These kinds of things pop up a lot on HN, so I want to ask: are they helpful to people? I save basically every single one, planning to come back to them (I studied math and economics in college, and do a little programming now but not enough to call myself a developer), but can’t find time between work and everything else to dive in and actually advance my skills. So maybe what I’m asking for is this: is there a “refresh your math, sharpen your sword” resource that exists that one could tune to what they do today?

_hl_ 6y ago
If you studied math, or if you have any kind of respect for the mere concept of rigorous proofs, then these kinds of resources will leave you deeply dissatisfied. If you want to refresh your math, take an elementary result of any particular discipline, e.g. existance and multiplicity of eigenvalues in linear algebra, or uncomputability of the halting problem, and see if you can prove it yourself from what you still recall. You will have to look up on definitions and theorems on the way there, refreshing your skills.