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BP230 The sum of vertices, line ends, and dots is 7 vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP225 BP226 BP227 BP228 BP229  *  BP231 BP232 BP233 BP234 BP235

KEYWORD

arbitrary, traditional

CONCEPT addition (info | search),
line_or_curve_endpoint (info | search),
dot (info | search),
vertex_of_meeting_lines (info | search)

AUTHOR

Giuseppe Insana

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