English
The identity AlgEquiv on α yields the identity AlgEquiv on matrices: AlgEquiv.refl.mapMatrix = (AlgEquiv.refl : Matrix m m α ≃ₐ[R] _).
Русский
Идентичное AlgEquiv на α порождает идентичный AlgEquiv на матрицах: AlgEquiv.refl.mapMatrix = (AlgEquiv.refl : Matrix m m α ≃ₐ[R] _).
LaTeX
$$$\text{AlgEquiv.refl.mapMatrix} = (\text{AlgEquiv.refl} : \mathrm{Matrix}_{m\times m}(\alpha) \simeq_{\mathrm{Alg}} _)$$$
Lean4
@[simp]
theorem mapMatrix_refl : AlgEquiv.refl.mapMatrix = (AlgEquiv.refl : Matrix m m α ≃ₐ[R] _) :=
rfl