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Theorem wuntpos 10858
Description: A weak universe is closed under transposition. (Contributed by Mario Carneiro, 12-Jan-2017.)
Hypotheses
Ref Expression
wun0.1 (𝜑 → 𝑈 ∈ WUni)
wunop.2 (𝜑 → 𝐴 ∈ 𝑈)
Assertion
Ref Expression
wuntpos (𝜑 → tpos 𝐴 ∈ 𝑈)

Proof of Theorem wuntpos
StepHypRef Expression
1 wun0.1 . 2 (𝜑 → 𝑈 ∈ WUni)
2 wunop.2 . . . . . 6 (𝜑 → 𝐴 ∈ 𝑈)
31, 2wundm 10852 . . . . 5 (𝜑 → dom 𝐴 ∈ 𝑈)
41, 3wuncnv 10854 . . . 4 (𝜑 → ◡dom 𝐴 ∈ 𝑈)
51wun0 10842 . . . . 5 (𝜑 → ∅ ∈ 𝑈)
61, 5wunsn 10840 . . . 4 (𝜑 → {∅} ∈ 𝑈)
71, 4, 6wunun 10834 . . 3 (𝜑 → (◡dom 𝐴 ∪ {∅}) ∈ 𝑈)
81, 2wunrn 10853 . . 3 (𝜑 → ran 𝐴 ∈ 𝑈)
91, 7, 8wunxp 10848 . 2 (𝜑 → ((◡dom 𝐴 ∪ {∅}) × ran 𝐴) ∈ 𝑈)
10 tposssxp 8285 . . 3 tpos 𝐴 ⊆ ((◡dom 𝐴 ∪ {∅}) × ran 𝐴)
1110a1i 11 . 2 (𝜑 → tpos 𝐴 ⊆ ((◡dom 𝐴 ∪ {∅}) × ran 𝐴))
121, 9, 11wunss 10836 1 (𝜑 → tpos 𝐴 ∈ 𝑈)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∈ wcel 2147   ⊆ wss 3900   ∪ cun 4152  ∅c0 4281  {csn 4588   × cxp 5656  ◡ccnv 5657  dom cdm 5658  ran crn 5659  tpos ctpos 8280  WUnicwun 10824
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-sep 5255  ax-pr 5398
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2102  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-pw 4562  df-sn 4589  df-pr 4591  df-op 4841  df-uni 4873  df-br 5109  df-opab 5174  df-mpt 5193  df-tr 5219  df-xp 5664  df-rel 5665  df-cnv 5666  df-co 5667  df-dm 5668  df-rn 5669  df-res 5670  df-ima 5671  df-tpos 8281  df-wun 10826
This theorem is used by:  catcoppccl  18342
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