Metamath Proof Explorer


Theorem termccd

Description: A terminal category is a category (deduction form). (Contributed by Zhi Wang, 16-Oct-2025)

Ref Expression
Hypothesis termcthind.c ( 𝜑𝐶 ∈ TermCat )
Assertion termccd ( 𝜑𝐶 ∈ Cat )

Proof

Step Hyp Ref Expression
1 termcthind.c ( 𝜑𝐶 ∈ TermCat )
2 1 termcthind ( 𝜑𝐶 ∈ ThinCat )
3 2 thinccd ( 𝜑𝐶 ∈ Cat )