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Coxeter- Figure 7.7B
Author:
willgiesbarton
Topic:
Geometry
Let
A
be a noninvariant point, and
l
a noninvariant line through
A
. Suppose the given collineation transforms
A
into
A'
,
A'
into
A''
,
l
into
l'
,
l'
into
l''
,
l''
into
l'''
.
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