Theorem termccd 49966

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

Hypothesis

Ref	Expression
termcthind.c	⊢ (𝜑 → 𝐶 ∈ TermCat)

Assertion

Ref	Expression
termccd	⊢ (𝜑 → 𝐶 ∈ Cat)

Proof of Theorem termccd

Step	Hyp	Ref	Expression
1		termcthind.c	. . 3 ⊢ (𝜑 → 𝐶 ∈ TermCat)
2	1	termcthind 49965	. 2 ⊢ (𝜑 → 𝐶 ∈ ThinCat)
3	2	thinccd 49910	1 ⊢ (𝜑 → 𝐶 ∈ Cat)

Syntax hints:   → wi 4   ∈ wcel 2114  Catccat 17621  TermCatctermc 49959

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709  ax-nul 5241

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-mo 2540  df-clab 2716  df-cleq 2729  df-clel 2812  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3391  df-v 3432  df-sbc 3730  df-dif 3893  df-un 3895  df-ss 3907  df-nul 4275  df-if 4468  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-br 5087  df-iota 6448  df-fv 6500  df-ov 7363  df-thinc 49905  df-termc 49960

This theorem is referenced by:  termchomn0  49971  funcsetc1ocl  49983  funcsetc1o  49984  isinito2lem  49985  isinito3  49987  termcterm  50000  termcterm2  50001  termc2  50005  termcarweu  50015  diag1f1olem  50020  diag1f1o  50021  diag2f1olem  50023  diag2f1o  50024  diagffth  50025  diagciso  50026  diagcic  50027  termfucterm  50031  uobeqterm  50033  isinito4a  50035  setc1onsubc  50089  lmdran  50158