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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 1,687 to 1,692 of 2,569 results.

Project-declaredLean 4.28.0

Of Fintype

MatrixMap.IsCompletelyPositive.of_Fintype

Mathematical statement

Definition of a CP map, but with Fintype T in the definition instead of a Fin n.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Is Positive dual

MatrixMap.IsPositive.dual

Mathematical statement

The dual of a IsPositive map also IsPositive.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Is Hermitian Preserving

MatrixMap.IsPositive.IsHermitianPreserving

Project documentation

The composition of IsHermitianPreserving maps is also Hermitian preserving. -/ theorem comp {M₁ : MatrixMap A B R} {M₂ : MatrixMap B C R} (h₁ : M₁.IsHermitianPreserving) (h₂ : M₂.IsHermitianPreserving) : IsHermitianPreserving (M₂ ∘ₗ M₁) := fun _ h ↦ h₂ (h₁ h) end IsHermitianPreserving namespace IsPositive variable [Fintype A] [Fintype B] [Fintype C] /- Ev...

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Is Trace Preserving iff trace choi

MatrixMap.IsTracePreserving_iff_trace_choi

Mathematical statement

A map is trace preserving iff the partial trace of the Choi matrix is the identity.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Kron

MatrixMap.IsTracePreserving.kron

Mathematical statement

The kronecker product of IsTracePreserving maps is also trace preserving.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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