Theorem tz9.1ctco 37021

Description: Version of tz9.1c 9697 derived from ax-tco 37011. (Contributed by Matthew House, 6-Apr-2026.)

Hypothesis

Ref	Expression
tz9.1ctco.1	⊢ 𝐴 ∈ V

Assertion

Ref	Expression
tz9.1ctco	⊢ ∩ {𝑥 ∣ (𝐴 ⊆ 𝑥 ∧ Tr 𝑥)} ∈ V

Distinct variable group:   𝑥,𝐴

Proof of Theorem tz9.1ctco

Step	Hyp	Ref	Expression
1		tz9.1ctco.1	. . 3 ⊢ 𝐴 ∈ V
2		axtco2g 37016	. . 3 ⊢ (𝐴 ∈ V → ∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥))
3	1, 2	ax-mp 5	. 2 ⊢ ∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥)
4		intexab 5315	. 2 ⊢ (∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥) ↔ ∩ {𝑥 ∣ (𝐴 ⊆ 𝑥 ∧ Tr 𝑥)} ∈ V)
5	3, 4	mpbi 233	1 ⊢ ∩ {𝑥 ∣ (𝐴 ⊆ 𝑥 ∧ Tr 𝑥)} ∈ V

This proof depends on syntax axioms:   ∧ wa 400  ∃wex 1808   ∈ wcel 2142  {cab 2740  Vcvv 3454   ⊆ wss 3904  ∩ cint 4911  Tr wtr 5217

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1824  ax-4 1838  ax-5 1939  ax-6 1996  ax-7 2037  ax-8 2144  ax-9 2152  ax-10 2175  ax-11 2191  ax-12 2212  ax-ext 2734  ax-sep 5256  ax-tco 37011

This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1104  df-tru 1572  df-fal 1582  df-ex 1809  df-nf 1813  df-sb 2096  df-clab 2741  df-cleq 2754  df-clel 2837  df-ne 2958  df-ral 3079  df-rex 3089  df-rab 3416  df-v 3456  df-dif 3907  df-in 3911  df-ss 3921  df-nul 4286  df-uni 4872  df-int 4912  df-tr 5218

This theorem is used by:  tz9.1tco  37022