Geometric Realization of Some Triangle-Free Combinatorial Configurations
Figure 2
The configuration 11#(4,2;3) labeled by red and green numerals to reduce clutter. The numerals in black are the labels of the elements in the configuration described in Section A.4 of [1]. Since the lines of the geometric configuration corresponds to the blocks in Figure 7 of [1], this establishes the isomorphism between the geometric configuration 11#(4,2;3) and the unique triangle-free combinatorial configuration (223) in A.4 of [1].
