Theorem termcthind

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

	Ref	Expression
Hypothesis	termcthind.c	No typesetting found for |- ( ph -> C e. TermCat ) with typecode |-
Assertion	termcthind	$$⊢\phi \to C\in \mathrm{ThinCat}$$

Proof

Step	Hyp	Ref	Expression
1		termcthind.c	Could not format ( ph -> C e. TermCat ) : No typesetting found for |- ( ph -> C e. TermCat ) with typecode |-
2		termcthin	Could not format ( C e. TermCat -> C e. ThinCat ) : No typesetting found for |- ( C e. TermCat -> C e. ThinCat ) with typecode |-
3	1 2	syl	$$⊢\phi \to C\in \mathrm{ThinCat}$$