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Theorem ottpos 8188
Description: The transposition swaps the first two elements in a collection of ordered triples. (Contributed by Mario Carneiro, 1-Dec-2014.)
Assertion
Ref Expression
ottpos (𝐶𝑉 → (⟨𝐴, 𝐵, 𝐶⟩ ∈ tpos 𝐹 ↔ ⟨𝐵, 𝐴, 𝐶⟩ ∈ 𝐹))

Proof of Theorem ottpos
StepHypRef Expression
1 brtpos 8187 . . 3 (𝐶𝑉 → (⟨𝐴, 𝐵⟩tpos 𝐹𝐶 ↔ ⟨𝐵, 𝐴𝐹𝐶))
2 df-br 5101 . . 3 (⟨𝐴, 𝐵⟩tpos 𝐹𝐶 ↔ ⟨⟨𝐴, 𝐵⟩, 𝐶⟩ ∈ tpos 𝐹)
3 df-br 5101 . . 3 (⟨𝐵, 𝐴𝐹𝐶 ↔ ⟨⟨𝐵, 𝐴⟩, 𝐶⟩ ∈ 𝐹)
41, 2, 33bitr3g 313 . 2 (𝐶𝑉 → (⟨⟨𝐴, 𝐵⟩, 𝐶⟩ ∈ tpos 𝐹 ↔ ⟨⟨𝐵, 𝐴⟩, 𝐶⟩ ∈ 𝐹))
5 df-ot 4591 . . 3 𝐴, 𝐵, 𝐶⟩ = ⟨⟨𝐴, 𝐵⟩, 𝐶
65eleq1i 2828 . 2 (⟨𝐴, 𝐵, 𝐶⟩ ∈ tpos 𝐹 ↔ ⟨⟨𝐴, 𝐵⟩, 𝐶⟩ ∈ tpos 𝐹)
7 df-ot 4591 . . 3 𝐵, 𝐴, 𝐶⟩ = ⟨⟨𝐵, 𝐴⟩, 𝐶
87eleq1i 2828 . 2 (⟨𝐵, 𝐴, 𝐶⟩ ∈ 𝐹 ↔ ⟨⟨𝐵, 𝐴⟩, 𝐶⟩ ∈ 𝐹)
94, 6, 83bitr4g 314 1 (𝐶𝑉 → (⟨𝐴, 𝐵, 𝐶⟩ ∈ tpos 𝐹 ↔ ⟨𝐵, 𝐴, 𝐶⟩ ∈ 𝐹))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wcel 2114  cop 4588  cotp 4590   class class class wbr 5100  tpos ctpos 8177
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-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5243  ax-nul 5253  ax-pow 5312  ax-pr 5379  ax-un 7690
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-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3402  df-v 3444  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-op 4589  df-ot 4591  df-uni 4866  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5527  df-xp 5638  df-rel 5639  df-cnv 5640  df-co 5641  df-dm 5642  df-rn 5643  df-res 5644  df-ima 5645  df-iota 6456  df-fun 6502  df-fn 6503  df-fv 6508  df-tpos 8178
This theorem is referenced by: (None)
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