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A dendroid is said to be *smooth at a point*
provided that for each point and for each sequence of points
in tending to , the sequence of arcs tends to the
arc . A dendroid is said to be *smooth* provided that it is
smooth at some point (see [Charatonik et al. 1970, p. 298]).

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*Janusz J. Charatonik, Pawel Krupski and Pavel Pyrih*

*2001-11-30*