MatrixFrog
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 Jun 24 comment Can you explain the “Axiom of choice” in simple terms? Even though I didn't follow the details, I remembered what the Banach-Tarski theorem was, well enough to understand a visual joke in tonight's season premiere of Futurama, eight months later! Thanks! Mar 5 awarded Popular Question Jan 1 awarded Necromancer Dec 11 awarded Quorum Oct 18 revised Good Physical Demonstrations of Abstract Mathematics added 69 characters in body Oct 15 awarded Nice Question Oct 14 comment Boolean Simplification wolframalpha.com/input/… won't show you the steps it took to get all its answers, but may come in handy at some point... Oct 14 answered Good Physical Demonstrations of Abstract Mathematics Oct 14 accepted Can you explain the “Axiom of choice” in simple terms? Oct 11 awarded Editor Oct 11 revised Can you explain the “Axiom of choice” in simple terms? added 136 characters in body Oct 11 asked Can you explain the “Axiom of choice” in simple terms? Sep 25 comment Is there possibly a largest prime number? I think this a great question. The answer is on Google and Wikipedia and elsewhere, but the explanations you found out there are probably hard to understand. There are some people here who could answer this in really nice, plain, understandable language. +1 for sure. Sep 9 comment Your favourite maths puzzles Hm, I thought you could. Is there a math.stackexchange question on this? Sep 8 comment Your favourite maths puzzles If you have unlimited time and cash, then just keep playing until you're ahead. It'll happen eventually. I must be misunderstanding. Aug 28 awarded Scholar Aug 28 accepted How can I understand and prove the “sum and difference formulas” in trigonometry? (cos(a ± b) = …, etc.)? Aug 27 comment What is $\sqrt{i}$? +1 for introducing me to the term "Argand diagrams" which I'd never heard before. I always just heard "representations in the complex plane" or something. Aug 25 comment How to convert a hexadecimal number to an octal number? Does this really fall under "number theory"? I thought number theory was all about the values of numbers, not the notation. Maybe I'm being nitpicky, or maybe I'm just totally wrong. Aug 22 awarded Commentator