# Homotopy

06/10/2015

“Homotopy types are used to classify the essential features of an object. The letters A, R and Q all have one hole, and so are the same homotopy type. The letters C, X and K are also of the same homotopy type, as they can all transform into a line.”

Source: *Univalent Foundations Redefines Mathematics | Quanta Magazine*