We keep on writing I to denote the closed unit interval [0, 1].
CITATION STYLE
Manetti, M. (2015). The fundamental group. In UNITEXT - La Matematica per il 3 piu 2 (Vol. 91, pp. 181–198). Springer-Verlag Italia s.r.l. https://doi.org/10.1007/978-3-319-16958-3_11
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