Metamath Proof Explorer


Theorem thincssc

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