ThmDex – An index of mathematical definitions, results, and conjectures.
Determinant of a real identity matrix
Formulation 0
Let $I_N \in \mathbb{R}^{N \times N}$ be a D5621: Real identity matrix.
Then \begin{equation} \text{Det} I_N = 1 \end{equation}
Proofs
Proof 0
Let $I_N \in \mathbb{R}^{N \times N}$ be a D5621: Real identity matrix.
This result is a particular case of R4106: Determinant of real diagonal matrix. $\square$