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awarded  Nice Question
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Jun
9
accepted Understanding the proof for: $d(f^*\omega)\overset{!}{=}f^*(d\omega)$
Jun
9
comment Understanding the proof for: $d(f^*\omega)\overset{!}{=}f^*(d\omega)$
I see, but where does the $\phi$ in $\sum_{i,j}\frac{\partial f}{\partial y_i}\circ\phi(\frac{\partial (\phi_i)}{\partial x_j}dx_j)$ come from?
Jun
9
asked Understanding the proof for: $d(f^*\omega)\overset{!}{=}f^*(d\omega)$
Jun
9
accepted Who introduced the term Homeomorphism?
Jun
9
comment Who introduced the term Homeomorphism?
Thank you, that is more than I hoped for.
Jun
9
asked Who introduced the term Homeomorphism?