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Theorem tposid 49072
Description: Swap an ordered pair. (Contributed by Zhi Wang, 5-Oct-2025.)
Assertion
Ref Expression
tposid (𝑋tpos I 𝑌) = ⟨𝑌, 𝑋

Proof of Theorem tposid
StepHypRef Expression
1 ovtpos 8181 . 2 (𝑋tpos I 𝑌) = (𝑌 I 𝑋)
2 df-ov 7359 . 2 (𝑌 I 𝑋) = ( I ‘⟨𝑌, 𝑋⟩)
3 opex 5410 . . 3 𝑌, 𝑋⟩ ∈ V
4 fvi 6908 . . 3 (⟨𝑌, 𝑋⟩ ∈ V → ( I ‘⟨𝑌, 𝑋⟩) = ⟨𝑌, 𝑋⟩)
53, 4ax-mp 5 . 2 ( I ‘⟨𝑌, 𝑋⟩) = ⟨𝑌, 𝑋
61, 2, 53eqtri 2761 1 (𝑋tpos I 𝑌) = ⟨𝑌, 𝑋
Colors of variables: wff setvar class
Syntax hints:   = wceq 1541  wcel 2113  Vcvv 3438  cop 4584   I cid 5516  cfv 6490  (class class class)co 7356  tpos ctpos 8165
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2706  ax-sep 5239  ax-nul 5249  ax-pow 5308  ax-pr 5375  ax-un 7678
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2567  df-clab 2713  df-cleq 2726  df-clel 2809  df-nfc 2883  df-ne 2931  df-ral 3050  df-rex 3059  df-rab 3398  df-v 3440  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4284  df-if 4478  df-pw 4554  df-sn 4579  df-pr 4581  df-op 4585  df-uni 4862  df-br 5097  df-opab 5159  df-mpt 5178  df-id 5517  df-xp 5628  df-rel 5629  df-cnv 5630  df-co 5631  df-dm 5632  df-rn 5633  df-res 5634  df-ima 5635  df-iota 6446  df-fun 6492  df-fn 6493  df-fv 6498  df-ov 7359  df-tpos 8166
This theorem is referenced by: (None)
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