Matroid Theory
- Main article: Matroid theory
The Fano plane is one of the important examples in the structure theory of matroids. Excluding the Fano plane as a matroid minor is necessary to characterize several important classes of matroids, such as regular, graphic, and cographic ones.
If you break one line apart into three 2-point lines you obtain the "non-Fano configuration", which can be embedded in the real plane. It is another important example in matroid theory, as it must be excluded for many theorems to hold.
Read more about this topic: Fano Plane
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