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Maths Without Numbers Experience it live.

Relations, classes, orders, bijections, different infinities and topology: mathematics as the science of structure, hands-on.

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Äquivalenzklassen und Partitionen

Äquivalenzklassen und Partitionen

Zwölf Figuren fliegen nach einem Kriterium wie „gleiche Form“ in weiche Inseln, die Pfeile wachsen innerhalb der Klassen, und die Matrix M × M sortiert sich zur Blockdiagonale. „Gleiche Form oder Farbe“ zeigt, was ohne Transitivität schiefgeht. Inseln lassen sich von Hand ziehen oder einkreisen; der Beweis-Modus führt Schritt für Schritt durch den Satz Äquivalenzrelation ⇔ Partition bis zum Verschmelzen überlappender Klassen.

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