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Theorem tposf1o 49506
Description: Condition of a bijective transposition. (Contributed by Zhi Wang, 5-Oct-2025.)
Assertion
Ref Expression
tposf1o (𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 → tpos 𝐹:(𝐵 × 𝐴)–1-1-onto𝐶)

Proof of Theorem tposf1o
StepHypRef Expression
1 relxp 5666 . . 3 Rel (𝐴 × 𝐵)
2 tposf1o2 8233 . . 3 (Rel (𝐴 × 𝐵) → (𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 → tpos 𝐹:(𝐴 × 𝐵)–1-1-onto𝐶))
31, 2ax-mp 5 . 2 (𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 → tpos 𝐹:(𝐴 × 𝐵)–1-1-onto𝐶)
4 cnvxp 6143 . . 3 (𝐴 × 𝐵) = (𝐵 × 𝐴)
5 f1oeq2 6796 . . 3 ((𝐴 × 𝐵) = (𝐵 × 𝐴) → (tpos 𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 ↔ tpos 𝐹:(𝐵 × 𝐴)–1-1-onto𝐶))
64, 5ax-mp 5 . 2 (tpos 𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 ↔ tpos 𝐹:(𝐵 × 𝐴)–1-1-onto𝐶)
73, 6sylib 220 1 (𝐹:(𝐴 × 𝐵)–1-1-onto𝐶 → tpos 𝐹:(𝐵 × 𝐴)–1-1-onto𝐶)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208   = wceq 1561   × cxp 5646  ccnv 5647  Rel wrel 5653  1-1-ontowf1o 6521  tpos ctpos 8206
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1816  ax-4 1830  ax-5 1931  ax-6 1988  ax-7 2029  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-sep 5247  ax-nul 5257  ax-pow 5323  ax-pr 5391  ax-un 7719
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1101  df-tru 1564  df-fal 1574  df-ex 1801  df-nf 1805  df-sb 2092  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3078  df-rex 3088  df-rab 3416  df-v 3457  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4482  df-pw 4558  df-sn 4584  df-pr 4586  df-op 4590  df-uni 4867  df-br 5102  df-opab 5164  df-mpt 5183  df-id 5543  df-xp 5654  df-rel 5655  df-cnv 5656  df-co 5657  df-dm 5658  df-rn 5659  df-res 5660  df-ima 5661  df-iota 6478  df-fun 6524  df-fn 6525  df-f 6526  df-f1 6527  df-fo 6528  df-f1o 6529  df-fv 6530  df-1st 7971  df-2nd 7972  df-tpos 8207
This theorem is referenced by:  tposidf1o  49509
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