Correlation (相関)
- Correlation (相関) #Card
- The composed relation $\psi^{-} \circ \varphi \subset N \times K$ defined by: $$\psi^{-} \circ \varphi = {(n, k) : \varphi(n) = \psi(k)}$$
The composed relation $\psi^{-} \circ \varphi \subset N \times K$ defined by: $$\psi^{-} \circ \varphi = {(n, k) : \varphi(n) = \psi(k)}$$
本書独自(数列の相関)。Lean に直接対応なし