English
For x ∈ S, Transcendental (adjoin F s) x is equivalent to Transcendental (Algebra.adjoin F s) x; i.e., transcendence over the adjoin and over the corresponding algebraic adjoin coincide.
Русский
Для x ∈ S Transcendental(адъойн F s) x эквивалентно Transcendental(Algebra.adjoin F s) x; то есть трансцендентность над adjoin и над соответствующим Algebra.adjoin совпадает.
LaTeX
$$$\\\\mathrm{Transcendental}(\\\\operatorname{adjoin}_F s) \\, x \\\\iff \\\\mathrm{Transcendental}(\\\\operatorname{Algebra.adjoin}_F s) \\, x$$$
Lean4
theorem transcendental_adjoin_iff {x : S} : Transcendental (adjoin F s) x ↔ Transcendental (Algebra.adjoin F s) x :=
(IsAlgebraic.transcendental_iff ..).symm