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Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 2,569 curated research declarations and 119,070 complete package declarations. Search 10,000 more complete Mathlib declarations.

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Showing 547 to 552 of 2,569 results.

Project-declaredLean 4.21.0-rc3

Support supports coe

ConNF.Support.supports_coe

Mathematical statement

The same as ModelData but without the propositions. -/ class PreModelData (α : TypeIndex) where TSet : Type u AllPerm : Type u [allPermGroup : Group AllPerm] [allAction : MulAction AllPerm TSet] tSetForget : TSet → StrSet α allPermForget : AllPerm → StrPerm α export PreModelData (TSet AllPerm) attribute [instance] PreModelData.allPermGroup PreModelData....

set theoryconsistencyfoundations

Source project: Con(NF)

Person-level attribution pending.

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Project-declaredLean 4.33.0-rc1

Construct good prelim

construct_good_prelim

Mathematical statement

A preliminary endgame bound. In the τ\tau-minimizer setup, let k=d[X1;X2]k=d[X_1;X_2] and let measurable T1,T2,T3T_1,T_2,T_3 satisfy T1+T2+T3=0T_1+T_2+T_3=0. Put δ=I[T1:T2]+I[T2:T3]+I[T3:T1]\delta=I[T_1:T_2]+I[T_2:T_3]+I[T_3:T_1] and c[T1#T2]=d[X10;T1]d[X10;X1]+d[X20;T2]d[X20;X2].c[T_1\#T_2]=d[X_1^0;T_1]-d[X_1^0;X_1]+d[X_2^0;T_2]-d[X_2^0;X_2]. Then kδ+ηc[T1#T2]+η2(I[T1:T3]+I[T2:T3]).k\le\delta+\eta c[T_1\#T_2]+\frac{\eta}{2}\bigl(I[T_1:T_3]+I[T_2:T_3]\bigr).

additive combinatoricsentropyprobability

Source project: Polynomial Freiman-Ruzsa project

Person-level attribution pending.

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Project-declaredLean 4.32.0

I Union ball subset i Union Ω₁

Construction.iUnion_ball_subset_iUnion_Ω₁

Mathematical statement

For a fixed spatial grid cube II, every frequency parameter lying in one of the prescribed balls centered at the finite net Z(I)\mathcal Z(I) also lies in at least one of the frequency regions Ω1(I,f)\Omega_1(I,f). Equivalently, the union of those net balls is contained in the union of the first-stage tile frequency regions.

harmonic analysisFourier analysismeasure theory

Source project: Carleson formalization

Person-level attribution pending.

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Project-declaredLean 4.33.0-rc1

Continuous Within At Iio indicator Ioc

continuousWithinAt_Iio_indicator_Ioc

Mathematical statement

The indicator of a half-open interval Ioc a b with constant value c is left-continuous: when approached from the left it is eventually constant, so it is continuous within Iio t at t for every t.

probabilitystochastic processesmeasure theory

Source project: Brownian motion

Person-level attribution pending.

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