galois-lattice-antisomorphism.tex

The contours of two order-theoretic lattices lie side by side. The lattices are organized in stages, with points marked by different labels. At each stage the two lattices are connected by a thin dotted horizontal line. — The lattice anti-isomorphism between the lattice of the subgroups of the Galois group of an extension K/k and the lattice of intermediary subfields of K

original work by Pablo
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