Source-pinned research

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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 187 research declarations. Search 10,000 more complete Mathlib declarations.

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Project-declaredLean 4.32.0

Time deriv curl commute

Space.time_deriv_curl_commute

Plain-language statement

Curl and time derivative commute.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Det time Space Basis Equiv

SpaceTime.det_timeSpaceBasisEquiv

Project documentation

The equivalence on of SpaceTime taking (1, 0, 0, ...) to of (c, 0, 0, ....) and keeping all other components the same. -/ def timeSpaceBasisEquiv {d : ℕ} (c : SpeedOfLight) : SpaceTime d ≃L[ℝ] SpaceTime d where toFun x := fun μ => match μ with | Sum.inl 0 => c.val * x (Sum.inl 0) | Sum.inr i => x (Sum.inr i) invFun x := fun μ => match μ with | Sum.i...

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Space Time integral eq time space integral

SpaceTime.spaceTime_integral_eq_time_space_integral

Project documentation

The equivalence on of SpaceTime taking (1, 0, 0, ...) to of (c, 0, 0, ....) and keeping all other components the same. -/ def timeSpaceBasisEquiv {d : ℕ} (c : SpeedOfLight) : SpaceTime d ≃L[ℝ] SpaceTime d where toFun x := fun μ => match μ with | Sum.inl 0 => c.val * x (Sum.inl 0) | Sum.inr i => x (Sum.inr i) invFun x := fun μ => match μ with | Sum.i...

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Time Space Basis add Haar

SpaceTime.timeSpaceBasis_addHaar

Project documentation

The equivalence on of SpaceTime taking (1, 0, 0, ...) to of (c, 0, 0, ....) and keeping all other components the same. -/ def timeSpaceBasisEquiv {d : ℕ} (c : SpeedOfLight) : SpaceTime d ≃L[ℝ] SpaceTime d where toFun x := fun μ => match μ with | Sum.inl 0 => c.val * x (Sum.inl 0) | Sum.inr i => x (Sum.inr i) invFun x := fun μ => match μ with | Sum.i...

physicsquantum field theoryrelativity

Source project: Physlib

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Project-declaredLean 4.32.0

Of U1Subgroup smul eq smul

StandardModel.HiggsVec.ofU1Subgroup_smul_eq_smul

Project documentation

The subgroup of gaugeGroup := SU(3) × SU(2) × U(1) which preserves every HiggsVec by the action of StandardModel.HiggsVec.rep is given by SU(3) × ℤ₆ where ℤ₆ is the subgroup of SU(2) × U(1) with elements (α^(-3) * I₂, α) where α is a sixth root of unity. -/ informal_lemma stability_group where deps := [``HiggsVec] tag := "6V2MO" /-! ## A.8...

physicsquantum field theoryrelativity

Source project: Physlib

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Project-declaredLean 4.32.0

Cross product t

standParam.cross_product_t

Plain-language statement

The top-row of the standard parameterization is the cross product of the conjugate of the up and charm rows.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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