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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 35961 | . 2 ⊢ (𝐹 ∈ FunsALTV ↔ ( ≀ 𝐹 ∈ CnvRefRels ∧ 𝐹 ∈ Rels )) | |
2 | cosselrels 35772 | . . . . 5 ⊢ (𝐹 ∈ Rels → ≀ 𝐹 ∈ Rels ) | |
3 | 2 | biantrud 534 | . . . 4 ⊢ (𝐹 ∈ Rels → (∀𝑢∃*𝑥 𝑢𝐹𝑥 ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ ≀ 𝐹 ∈ Rels ))) |
4 | cosselcnvrefrels4 35812 | . . . 4 ⊢ ( ≀ 𝐹 ∈ CnvRefRels ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ ≀ 𝐹 ∈ Rels )) | |
5 | 3, 4 | syl6rbbr 292 | . . 3 ⊢ (𝐹 ∈ Rels → ( ≀ 𝐹 ∈ CnvRefRels ↔ ∀𝑢∃*𝑥 𝑢𝐹𝑥)) |
6 | 5 | pm5.32ri 578 | . 2 ⊢ (( ≀ 𝐹 ∈ CnvRefRels ∧ 𝐹 ∈ Rels ) ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ 𝐹 ∈ Rels )) |
7 | 1, 6 | bitri 277 | 1 ⊢ (𝐹 ∈ FunsALTV ↔ (∀𝑢∃*𝑥 𝑢𝐹𝑥 ∧ 𝐹 ∈ Rels )) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 ∀wal 1534 ∈ wcel 2113 ∃*wmo 2619 class class class wbr 5063 ≀ ccoss 35489 Rels crels 35491 CnvRefRels ccnvrefrels 35497 FunsALTV cfunsALTV 35519 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 ax-sep 5200 ax-nul 5207 ax-pow 5263 ax-pr 5327 ax-un 7458 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-ral 3142 df-rex 3143 df-rab 3146 df-v 3495 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-nul 4289 df-if 4465 df-pw 4538 df-sn 4565 df-pr 4567 df-op 4571 df-uni 4836 df-br 5064 df-opab 5126 df-id 5457 df-xp 5558 df-rel 5559 df-cnv 5560 df-co 5561 df-dm 5562 df-rn 5563 df-res 5564 df-coss 35695 df-rels 35761 df-ssr 35774 df-cnvrefs 35799 df-cnvrefrels 35800 df-funss 35949 df-funsALTV 35950 |
This theorem is referenced by: (None) |
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