| (1) | $X$ is a D11: Set |
| (2) | \begin{equation} \mathcal{E} \subseteq X^N \end{equation} |
| ▼ | Set of symbols |
| ▼ | Alphabet |
| ▼ | Deduction system |
| ▼ | Theory |
| ▼ | Zermelo-Fraenkel set theory |
| ▼ | Set |
| ▼ | Binary cartesian set product |
| ▼ | Binary relation |
| ▼ | Relation |
| ▼ | N-ary relation |
| ▼ | N-relation system |
| (1) | $X$ is a D11: Set |
| (2) | \begin{equation} \mathcal{E} \subseteq X^N \end{equation} |