## Peirce’s 1870 “Logic of Relatives” • Comment 11.6

### Peirce’s 1870 “Logic of Relatives” • Comment 11.6

Let’s continue working our way through the above definitions, constructing appropriate examples as we go.

Relation $E_1 \subseteq X \times Y$ exemplifies the quality of totality at $X.$  $\text{Dyadic Relation}~ E_1$

Relation $E_2 \subseteq X \times Y$ exemplifies the quality of totality at $Y.$  $\text{Dyadic Relation}~ E_2$

Relation $E_3 \subseteq X \times Y$ exemplifies the quality of tubularity at $X.$  $\text{Dyadic Relation}~ E_3$

Relation $E_4 \subseteq X \times Y$ exemplifies the quality of tubularity at $Y.$  $\text{Dyadic Relation}~ E_4$

So $E_3$ is a pre-function $e_3 : X \rightharpoonup Y$ and $E_4$ is a pre-function $e_4 : X \leftharpoonup Y.$

### Resources

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