Smart, Edward Howard · London : Macmillian and Co. · leaf 229
Fig. 102a. … Fio. 102&. By similar reasoning the join ofany other pair of correspondingpoints will pass through the inter-section of BB and CC. Hence the joins of every pairof corresponding rays are con-current. By similar reasoning tlie inter-section of any other pair of. cor-responding lines will lie on…
Geometry, Projective
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