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refactor(analysis/calculus/local_extr): split file #19124
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UPD: I'm going to redo this PR in
mathlib
4 after the port. I'm leaving it here as a reminder.Split
analysis.calculus.local_extr
into 4 filesanalysis.calculus.local_extr.basic
: positive tangent cone and Fermat theorem.topology.algebra.order.rolle
: topological part of Rolle's Theorem.analysis.calculus.local_extr.rolle
: Rolle's Theorem.analysis.calculus.local_extr.polynomial
: applications to roots of real polynomials.API changes
exists_Ioo_extr_on_Icc
andexists_local_extr_Ioo
.exists_extr_on_Ioo_of_tendsto
andexists_is_local_extr_Ioo_of_tendsto
.f
andf'
implicit in all versions of Rolle's Theorem.