In this chapter we will introduce the category of dendroidal sets, which is the main object of study of this book. The definition of a dendroidal set mirrors that of a simplicial set, except that the category Δ is replaced by a larger category Ω of trees. The morphisms in the latter category are the operad morphisms between the free operads generated by these trees.
CITATION STYLE
Heuts, G., & Moerdijk, I. (2022). Dendroidal Sets. In Ergebnisse der Mathematik und ihrer Grenzgebiete (Vol. 75, pp. 91–131). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-031-10447-3_3
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