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15

We use the tikz-cd-package for this. If you are a beginner, you probably should have a look at this online-editor. \documentclass[a4paper]{article} \usepackage{tikz-cd} \begin{document} \begin{tikzcd}[row sep = huge, column sep = huge] A \arrow[r, "\varphi_1"] \arrow[d, "\varphi_2", swap] \arrow[dd, bend right = 40, "\varphi_8", swap] & B \arrow[d, "\...


4

You're overcomplicating a bit, you just need |[draw=red, rectangle]| in the cell. \documentclass{article} \usepackage{tikz-cd} \usetikzlibrary{shapes} \begin{document} \begin{figure} \begin{tikzcd}[cells={nodes={draw=black, ellipse,anchor=center,minimum height=2em}}] 0 \arrow[r] & 1 \arrow[r] & |[draw=none]|\dots \arrow[r] &...


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