![John Carlos Baez on Twitter: "Jordan algebras are fascinating to me - but annoying. The usual definition uses the "Jordan identity", which looks completely random. With help from @gro_tsen I found an John Carlos Baez on Twitter: "Jordan algebras are fascinating to me - but annoying. The usual definition uses the "Jordan identity", which looks completely random. With help from @gro_tsen I found an](https://pbs.twimg.com/media/EbnJjHwU0AIZ1KK.jpg)
John Carlos Baez on Twitter: "Jordan algebras are fascinating to me - but annoying. The usual definition uses the "Jordan identity", which looks completely random. With help from @gro_tsen I found an
![functional analysis - Jordan decomposition in Takesaki: theorem III.2.2.1 - Mathematics Stack Exchange functional analysis - Jordan decomposition in Takesaki: theorem III.2.2.1 - Mathematics Stack Exchange](https://i.stack.imgur.com/A0mSq.png)
functional analysis - Jordan decomposition in Takesaki: theorem III.2.2.1 - Mathematics Stack Exchange
![Principia Marsupia on Twitter: "Nota: toda esta historia no es nueva. La cosa es que yo me acabo de enterar ahora 😅 Desde que lo estudié, siempre me han flipado los álgebras Principia Marsupia on Twitter: "Nota: toda esta historia no es nueva. La cosa es que yo me acabo de enterar ahora 😅 Desde que lo estudié, siempre me han flipado los álgebras](https://pbs.twimg.com/media/EjfTRk2XYAAIH-R.jpg:large)