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| Mirrors > Home > MPE Home > Th. List > Mathboxes > elfunsALTV4 | Structured version Visualization version GIF version | ||
| Description: Elementhood in the class of functions. (Contributed by Peter Mazsa, 31-Aug-2021.) |
| Ref | Expression |
|---|---|
| elfunsALTV4 | ⊢ (𝐹 ∈ FunsALTV ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ 𝐹 ∈ Rels )) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfunsALTV 38789 | . 2 ⊢ (𝐹 ∈ FunsALTV ↔ ( ≀ 𝐹 ∈ CnvRefRels ∧ 𝐹 ∈ Rels )) | |
| 2 | cosselcnvrefrels4 38631 | . . . 4 ⊢ ( ≀ 𝐹 ∈ CnvRefRels ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ ≀ 𝐹 ∈ Rels )) | |
| 3 | cosselrels 38586 | . . . . 5 ⊢ (𝐹 ∈ Rels → ≀ 𝐹 ∈ Rels ) | |
| 4 | 3 | biantrud 531 | . . . 4 ⊢ (𝐹 ∈ Rels → (∀𝑢∃*𝑥 𝑢𝐹𝑥 ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ ≀ 𝐹 ∈ Rels ))) |
| 5 | 2, 4 | bitr4id 290 | . . 3 ⊢ (𝐹 ∈ Rels → ( ≀ 𝐹 ∈ CnvRefRels ↔ ∀𝑢∃*𝑥 𝑢𝐹𝑥)) |
| 6 | 5 | pm5.32ri 575 | . 2 ⊢ (( ≀ 𝐹 ∈ CnvRefRels ∧ 𝐹 ∈ Rels ) ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ 𝐹 ∈ Rels )) |
| 7 | 1, 6 | bitri 275 | 1 ⊢ (𝐹 ∈ FunsALTV ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ 𝐹 ∈ Rels )) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∀wal 1539 ∈ wcel 2111 ∃*wmo 2533 class class class wbr 5089 ≀ ccoss 38221 Rels crels 38223 CnvRefRels ccnvrefrels 38229 FunsALTV cfunsALTV 38251 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7668 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-nul 4281 df-if 4473 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-br 5090 df-opab 5152 df-id 5509 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-rels 38463 df-coss 38512 df-ssr 38589 df-cnvrefs 38616 df-cnvrefrels 38617 df-funss 38777 df-funsALTV 38778 |
| This theorem is referenced by: (None) |
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