Lindemann–Weierstrass theorem | Wikipedia audio article

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00:01:20 1 Naming convention
00:02:21 2 Transcendence of span ie/i
00:04:11 3  spanip/i
00:04:21 4 Modular conjecture
00:04:42 5 Lindemann–Weierstrass theorem
00:05:00 5.1 Proof
00:05:10 5.1.1 Preliminary lemmas
00:05:31 5.1.2 Final step
00:29:55 6 See also
00:34:07 7 Notes
00:42:14 8 References
00:42:42 9 Further reading
00:43:57 10 External links



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SUMMARY
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In transcendental number theory, the Lindemann–Weierstrass theorem is a result that is very useful in establishing the transcendence of numbers. It states the following.
In other words the extension field ℚ(eα1, ..., eαn) has transcendence degree n over ℚ.

An equivalent formulation (Baker 1990, Chapter 1, Theorem 1.4), is the following. This equivalence transforms a linear relation over the algebraic numbers into an algebraic relation over ℚ: by using the fact that a symmetric polynomial whose arguments are all conjugates of one another gives a rational number.
The theorem is named for Ferdinand von Lindemann and Karl Weierstrass. Lindemann proved in 1882 that eα is transcendental for every non-zero algebraic number α, thereby establishing that π is transcendental (see below). Weierstrass proved the above more general statement in 1885.The theorem, along with the Gelfond–Schneider theorem, is extended by Baker's theorem, and all of these are further generalized by Schanuel's conjecture.