Elis

ELIS, or the External Locus of Internal Symmetry, is a concept used in mathematics, particularly in group theory and topology. It describes a symmetrical property of objects or systems that are invariant under certain transformations, meaning they look the same even when viewed from different perspectives or after applying specific operations. In practical terms, ELIS helps mathematicians understand and classify patterns, structures, or shapes that maintain their core features despite changes, enabling insights into their inherent symmetry and stability.