Description: A terminal category is a thin category. (Contributed by Zhi Wang, 16-Oct-2025)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | termcthin | Could not format assertion : No typesetting found for |- ( C e. TermCat -> C e. ThinCat ) with typecode |- |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid | ||
| 2 | 1 | istermc | Could not format ( C e. TermCat <-> ( C e. ThinCat /\ E. x ( Base ` C ) = { x } ) ) : No typesetting found for |- ( C e. TermCat <-> ( C e. ThinCat /\ E. x ( Base ` C ) = { x } ) ) with typecode |- |
| 3 | 2 | simplbi | Could not format ( C e. TermCat -> C e. ThinCat ) : No typesetting found for |- ( C e. TermCat -> C e. ThinCat ) with typecode |- |