Example 1
Tag 00Q7, permanent. Cite it as [Bourbaki, Tag 00Q7].
Algebra, VIII, p. 454, Appendix 2. Determinants over a Noncommutative Field
The columns of the matrix are + . By formula (5) of VIII, p. 448, we have
(21) det() .
Bourbaki sets the proof directly after the statement, and the corpus does not separate them, so what is above is the statement and its proof together.