Source-pinned research

Research proof index

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Project-declaredLean 4.32.0

Orthogonal To Linear Isometry Equiv left inv

EuclideanGroup.orthogonalToLinearIsometryEquiv_left_inv

Plain-language statement

linearIsometryEquivToOrthogonal is a left inverse of orthogonalToLinearIsometryEquiv. Together with linearIsometryEquiv_constVAdd_mul, this proves left_inv of toAffineIsometryMulEquiv.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Orthogonal To Linear Isometry Equiv right inv

EuclideanGroup.orthogonalToLinearIsometryEquiv_right_inv

Plain-language statement

linearIsometryEquivToOrthogonal is a right inverse of orthogonalToLinearIsometryEquiv; this proves right_inv of toAffineIsometryMulEquiv.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record