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Theorem ovtpos 8177
Description: The transposition swaps the arguments in a two-argument function. When 𝐹 is a matrix, which is to say a function from (1...𝑚) × (1...𝑛) to or some ring, tpos 𝐹 is the transposition of 𝐹, which is where the name comes from. (Contributed by Mario Carneiro, 10-Sep-2015.)
Assertion
Ref Expression
ovtpos (𝐴tpos 𝐹𝐵) = (𝐵𝐹𝐴)

Proof of Theorem ovtpos
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 brtpos 8171 . . . . 5 (𝑦 ∈ V → (⟨𝐴, 𝐵⟩tpos 𝐹𝑦 ↔ ⟨𝐵, 𝐴𝐹𝑦))
21elv 3454 . . . 4 (⟨𝐴, 𝐵⟩tpos 𝐹𝑦 ↔ ⟨𝐵, 𝐴𝐹𝑦)
32iotabii 6486 . . 3 (℩𝑦𝐴, 𝐵⟩tpos 𝐹𝑦) = (℩𝑦𝐵, 𝐴𝐹𝑦)
4 df-fv 6509 . . 3 (tpos 𝐹‘⟨𝐴, 𝐵⟩) = (℩𝑦𝐴, 𝐵⟩tpos 𝐹𝑦)
5 df-fv 6509 . . 3 (𝐹‘⟨𝐵, 𝐴⟩) = (℩𝑦𝐵, 𝐴𝐹𝑦)
63, 4, 53eqtr4i 2775 . 2 (tpos 𝐹‘⟨𝐴, 𝐵⟩) = (𝐹‘⟨𝐵, 𝐴⟩)
7 df-ov 7365 . 2 (𝐴tpos 𝐹𝐵) = (tpos 𝐹‘⟨𝐴, 𝐵⟩)
8 df-ov 7365 . 2 (𝐵𝐹𝐴) = (𝐹‘⟨𝐵, 𝐴⟩)
96, 7, 83eqtr4i 2775 1 (𝐴tpos 𝐹𝐵) = (𝐵𝐹𝐴)
Colors of variables: wff setvar class
Syntax hints:  wb 205   = wceq 1542  Vcvv 3448  cop 4597   class class class wbr 5110  cio 6451  cfv 6501  (class class class)co 7362  tpos ctpos 8161
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2708  ax-sep 5261  ax-nul 5268  ax-pow 5325  ax-pr 5389  ax-un 7677
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2815  df-nfc 2890  df-ne 2945  df-ral 3066  df-rex 3075  df-rab 3411  df-v 3450  df-dif 3918  df-un 3920  df-in 3922  df-ss 3932  df-nul 4288  df-if 4492  df-pw 4567  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4871  df-br 5111  df-opab 5173  df-mpt 5194  df-id 5536  df-xp 5644  df-rel 5645  df-cnv 5646  df-co 5647  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-iota 6453  df-fun 6503  df-fn 6504  df-fv 6509  df-ov 7365  df-tpos 8162
This theorem is referenced by:  tpossym  8194  oppchom  17603  oppcco  17605  oppcmon  17628  funcoppc  17768  fulloppc  17816  fthoppc  17817  fthepi  17822  yonedalem22  18174  oppgplus  19134  oppglsm  19431  opprmul  20059  mamutpos  21823  mdettpos  21976  madutpos  22007  mdetpmtr2  32445
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