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Theorem tz9.1ctco 37312
Description: Version of tz9.1c 9731 derived from ax-tco 37302. (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
StepHypRef Expression
1 tz9.1ctco.1 . . 3 𝐴 ∈ V
2 axtco2g 37307 . . 3 (𝐴 ∈ V → ∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥))
31, 2ax-mp 5 . 2 ∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥)
4 intexab 5306 . 2 (∃𝑥(𝐴 ⊆ 𝑥 ∧ Tr 𝑥) ↔ ∩ {𝑥 ∣ (𝐴 ⊆ 𝑥 ∧ Tr 𝑥)} ∈ V)
53, 4mpbi 233 1 ∩ {𝑥 ∣ (𝐴 ⊆ 𝑥 ∧ Tr 𝑥)} ∈ V
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   ∧ wa 401  ∃wex 1811   ∈ wcel 2144  {cab 2738  Vcvv 3450   ⊆ wss 3895  ∩ cint 4906  Tr wtr 5211
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-sep 5248  ax-tco 37302
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-nul 4279  df-uni 4867  df-int 4907  df-tr 5212
This theorem is used by:  tz9.1tco  37313
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