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feat: Lindemann-Weierstrass Theorem #6718
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def ringEquivCongrLeft {R S G : Type _} [Semiring R] [Semiring S] [AddMonoid G] (f : R ≃+* S) : | ||
AddMonoidAlgebra R G ≃+* AddMonoidAlgebra S G := |
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This file should be easy to PR separately.
In general I think these Equiv
s should be obtained by combining both directions (RingHom
s in this case). We should show that AddMonoidAlgebra · G
is a functor (prove the comp
and id
lemmas) and deduce that both directions are inverse to each other.
Some assumptions might be able to be generalized, e.g. here [AddZeroClass G] should work.
There's still a lot of work to be done before it gets into mathlib.
Finsupp.indicator
#6719FloorSemiring.tendsto_pow_div_factorial
#17119