This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Metamath Proof Explorer
Description: A thin category is a category. (Contributed by Zhi Wang, 17-Sep-2024)
|
|
Ref |
Expression |
|
Assertion |
thincssc |
⊢ ThinCat ⊆ Cat |
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
thincc |
⊢ ( 𝑐 ∈ ThinCat → 𝑐 ∈ Cat ) |
| 2 |
1
|
ssriv |
⊢ ThinCat ⊆ Cat |