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# Blog

## A quote from Leo da Vinci

## Reply to AMS Blog post “Math Education Researchers Deserve Respect”

## Notes on Mengel, Sauermann, Zölitz (2017)

## A note on “Exposing Gender Bias in Student Ratings of Teaching”

## Reply to Paolo Bussotti’s review of my Leibniz-Riemann paper

## Reply to Saini’s condemnation of Darwin’s bias

## On the role of Arabic sources in early modern astronomy

## Footnoteism

## “Euclid’s” stupid definition of a straight line is not Euclid’s

## “Intro to proofs” course notes