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18 lines
602 B
18 lines
602 B
\begin{center}
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\begin{forest}
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for tree={circle, draw, no edge,
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minimum size=2em,
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inner sep=0pt,
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s sep=6mm,
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l sep=6mm}
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[$f$, rectangle, draw, tikz={\draw [line] () to (s.north);}
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[$s$, name=s, tikz={\draw [line] () to (-0.6, -2.2); \draw [fulldot=.5] () to (r.north);}
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[,phantom]
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[$r$, name=r, tikz={\draw [line] () to (p.north); \draw[dot=.5] () to (1.3,-3.5);}
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[$p$, name=p, tikz={\draw [line] () to (-0.6, -4.8); \draw[fulldot=.5] () to (0.6, -4.8);}]
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[,phantom]
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]
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]
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]
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\end{forest}
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\end{center}
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