Exercise 1.3.16. Consider a commutative square
and assume that \(h\) is an equivalence. Show that \(g\) is an equivalence if and only if the square is a pullback square.
Generated from the authoritative LaTeX source.
Stable homotopy theory and higher algebra · Exercise 1.3.16
Exercise 1.3.16. Consider a commutative square
and assume that \(h\) is an equivalence. Show that \(g\) is an equivalence if and only if the square is a pullback square.
Generated from the authoritative LaTeX source.