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| Mirrors > Home > MPE Home > Th. List > Mathboxes > tposf1o | Structured version Visualization version GIF version | ||
| Description: Condition of a bijective transposition. (Contributed by Zhi Wang, 5-Oct-2025.) |
| Ref | Expression |
|---|---|
| tposf1o | ⊢ (𝐹:(𝐴 × 𝐵)–1-1-onto→𝐶 → tpos 𝐹:(𝐵 × 𝐴)–1-1-onto→𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relxp 5673 | . . 3 ⊢ Rel (𝐴 × 𝐵) | |
| 2 | tposf1o2 8255 | . . 3 ⊢ (Rel (𝐴 × 𝐵) → (𝐹:(𝐴 × 𝐵)–1-1-onto→𝐶 → tpos 𝐹:◡(𝐴 × 𝐵)–1-1-onto→𝐶)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (𝐹:(𝐴 × 𝐵)–1-1-onto→𝐶 → tpos 𝐹:◡(𝐴 × 𝐵)–1-1-onto→𝐶) |
| 4 | cnvxp 6150 | . . 3 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 5 | f1oeq2 6809 | . . 3 ⊢ (◡(𝐴 × 𝐵) = (𝐵 × 𝐴) → (tpos 𝐹:◡(𝐴 × 𝐵)–1-1-onto→𝐶 ↔ tpos 𝐹:(𝐵 × 𝐴)–1-1-onto→𝐶)) | |
| 6 | 4, 5 | ax-mp 5 | . 2 ⊢ (tpos 𝐹:◡(𝐴 × 𝐵)–1-1-onto→𝐶 ↔ tpos 𝐹:(𝐵 × 𝐴)–1-1-onto→𝐶) |
| 7 | 3, 6 | sylib 221 | 1 ⊢ (𝐹:(𝐴 × 𝐵)–1-1-onto→𝐶 → tpos 𝐹:(𝐵 × 𝐴)–1-1-onto→𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 × cxp 5653 ◡ccnv 5654 Rel wrel 5660 –1-1-onto→wf1o 6534 tpos ctpos 8228 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7742 |
| 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 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6491 df-fun 6537 df-fn 6538 df-f 6539 df-f1 6540 df-fo 6541 df-f1o 6542 df-fv 6543 df-1st 7992 df-2nd 7993 df-tpos 8229 |
| This theorem is used by: tposidf1o 49878 |
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