Corollary 1
Tag 04QE, permanent. Cite it as [Bourbaki, Tag 04QE].
Commutative Algebra, chapter V, § 2. The lift of prime ideals
Under the hypotheses of Proposition 6, let f be a homomorphism from A to a field L and g1, g_2 two homomorphisms from A' to L which extend f. Then there exists a K-automorphism such that .*
The proof starting from Proposition 6 is the same as that of the Corollary to Theorem 2 starting from the latter.
Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.