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Mirrors > Home > MPE Home > Th. List > tposf2 | Structured version Visualization version GIF version |
Description: The domain and range of a transposition. (Contributed by NM, 10-Sep-2015.) |
Ref | Expression |
---|---|
tposf2 | ⊢ (Rel 𝐴 → (𝐹:𝐴⟶𝐵 → tpos 𝐹:◡𝐴⟶𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tposfo2 8036 | . . . . 5 ⊢ (Rel 𝐴 → (𝐹:𝐴–onto→ran 𝐹 → tpos 𝐹:◡𝐴–onto→ran 𝐹)) | |
2 | ffn 6584 | . . . . . 6 ⊢ (𝐹:𝐴⟶𝐵 → 𝐹 Fn 𝐴) | |
3 | dffn4 6678 | . . . . . 6 ⊢ (𝐹 Fn 𝐴 ↔ 𝐹:𝐴–onto→ran 𝐹) | |
4 | 2, 3 | sylib 217 | . . . . 5 ⊢ (𝐹:𝐴⟶𝐵 → 𝐹:𝐴–onto→ran 𝐹) |
5 | 1, 4 | impel 505 | . . . 4 ⊢ ((Rel 𝐴 ∧ 𝐹:𝐴⟶𝐵) → tpos 𝐹:◡𝐴–onto→ran 𝐹) |
6 | fof 6672 | . . . 4 ⊢ (tpos 𝐹:◡𝐴–onto→ran 𝐹 → tpos 𝐹:◡𝐴⟶ran 𝐹) | |
7 | 5, 6 | syl 17 | . . 3 ⊢ ((Rel 𝐴 ∧ 𝐹:𝐴⟶𝐵) → tpos 𝐹:◡𝐴⟶ran 𝐹) |
8 | frn 6591 | . . . 4 ⊢ (𝐹:𝐴⟶𝐵 → ran 𝐹 ⊆ 𝐵) | |
9 | 8 | adantl 481 | . . 3 ⊢ ((Rel 𝐴 ∧ 𝐹:𝐴⟶𝐵) → ran 𝐹 ⊆ 𝐵) |
10 | 7, 9 | fssd 6602 | . 2 ⊢ ((Rel 𝐴 ∧ 𝐹:𝐴⟶𝐵) → tpos 𝐹:◡𝐴⟶𝐵) |
11 | 10 | ex 412 | 1 ⊢ (Rel 𝐴 → (𝐹:𝐴⟶𝐵 → tpos 𝐹:◡𝐴⟶𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ⊆ wss 3883 ◡ccnv 5579 ran crn 5581 Rel wrel 5585 Fn wfn 6413 ⟶wf 6414 –onto→wfo 6416 tpos ctpos 8012 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-fo 6424 df-fv 6426 df-tpos 8013 |
This theorem is referenced by: tposf 8041 |
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