Subsequence (部分列)
QUESTION
Subsequence (部分列)
Click to reveal answer ANSWER
A sequence $\psi \in X^K$ is a subsequence of $\varphi \in X^N$ (where $N, K$ are infinite countable sets) if there exists an injection $\gamma \in N^K$ such that $\psi = \varphi \circ \gamma$ and $\Gamma_\varphi \subset \Gamma_\psi$.
Click to see question - ソースノート: chapter2.md
- カードID: subsequence
- 状態: active