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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 1,465 to 1,470 of 2,569 results.

Project-declaredLean 4.32.0

Perfectly Correct compose With DEM

KEMScheme.perfectlyCorrect_composeWithDEM

Mathematical statement

If a KEM and externally keyed DEM are both perfectly correct in the concrete probabilistic semantics of m, then their composition is also perfectly correct.

program verificationseparation logiccryptography

Source project: VCVio

Person-level attribution pending.

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Project-declaredLean 4.28.0

Ker kron le of le

ker_kron_le_of_le

Mathematical statement

If the kernels of the components are contained, then the kernel of the Kronecker product is contained.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Ker le of ker kron le left

ker_le_of_ker_kron_le_left

Mathematical statement

If the kernel of a product state is contained in another, the left component kernel is contained.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Ker le of ker kron le right

ker_le_of_ker_kron_le_right

Mathematical statement

If the kernel of a product state is contained in another, the right component kernel is contained.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Ker le trace Right

ker_le_traceRight

Mathematical statement

The kernel condition σ.M.ker ≤ ρ.M.ker is preserved under partial trace. This follows because supp(ρ) ⊆ supp(σ) implies supp(Tr_B ρ) ⊆ supp(Tr_B σ): if v ∈ supp(Tr_B ρ), then ⟨v, (Tr_B ρ) v⟩ > 0, so for some basis vector e_b we have v ⊗ e_b ∈ supp(ρ) ⊆ supp(σ), hence ⟨v, (Tr_B σ) v⟩ ≥ ⟨v ⊗ e_b, σ (v ⊗ e_b)⟩ > 0.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Ket Is Prod iff mul eq mul

Ket.IsProd_iff_mul_eq_mul

Mathematical statement

A ket is a product state iff its components are cross-multiplicative.

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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