# Freudenthal magic square

> construction of Lie algebras (including, notably, the exceptional simple Lie algebras) from a pair of real division algebras (R, C, H, O)

**Wikidata**: [Q5503261](https://www.wikidata.org/wiki/Q5503261)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Freudenthal_magic_square)  
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