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• 09:23, 9 January 2026 Riot Hero talk contribs created page Klein bottle (Created page with "The '''Klein bottle''' is a non-orientable topological surface used by Jacques Lacan in his later psychoanalytic theory to model paradoxes of subjectivity, identity, and the relationship between the inside and the outside. Unlike the Moebius strip, which has one side and one edge, the Klein bottle has no edges and no orientable inside or outside. It can only be properly embedded in four-dimensional space, making it a powerful figure for conceptualizing structural...")