User Joe Previdi - MathOverflow Meta

Joe Previdi

Member for 5 years, 7 months
Last seen more than 4 years ago

Chicago, IL, USA

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Mathematics teacher and hobbyist. B.A. in Mathematics, University of Chicago, 2020.

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May 16, 2021

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Jul 14, 2020
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Aug 28, 2019

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40

Access to journals during pandemic

31

Finding properties of operation defined by $x⊕y=\frac{1}{\frac{1}{x}+\frac{1}{y}}$? ("Reciprocal addition" common for parallel resistors)

12

Imaginary Golden Ratio

12

How to define the inverse of a vector?

10

Are the addition and multiplication of real numbers, as we know them, unique?