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| Mirrors > Home > MPE Home > Th. List > Mathboxes > br1cossxrncnvssrres | Structured version Visualization version GIF version | ||
| Description: 〈𝐵, 𝐶〉 and 〈𝐷, 𝐸〉 are cosets by range Cartesian product with restricted converse subsets class: a binary relation. (Contributed by Peter Mazsa, 9-Jun-2021.) |
| Ref | Expression |
|---|---|
| br1cossxrncnvssrres | ⊢ (((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑊) ∧ (𝐷 ∈ 𝑋 ∧ 𝐸 ∈ 𝑌)) → (〈𝐵, 𝐶〉 ≀ (𝑅 ⋉ (◡ S ↾ 𝐴))〈𝐷, 𝐸〉 ↔ ∃𝑢 ∈ 𝐴 ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | br1cossxrnres 38847 | . 2 ⊢ (((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑊) ∧ (𝐷 ∈ 𝑋 ∧ 𝐸 ∈ 𝑌)) → (〈𝐵, 𝐶〉 ≀ (𝑅 ⋉ (◡ S ↾ 𝐴))〈𝐷, 𝐸〉 ↔ ∃𝑢 ∈ 𝐴 ((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ∧ (𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷)))) | |
| 2 | brcnvssr 38895 | . . . . . 6 ⊢ (𝑢 ∈ V → (𝑢◡ S 𝐶 ↔ 𝐶 ⊆ 𝑢)) | |
| 3 | 2 | elv 3432 | . . . . 5 ⊢ (𝑢◡ S 𝐶 ↔ 𝐶 ⊆ 𝑢) |
| 4 | 3 | anbi1i 625 | . . . 4 ⊢ ((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ↔ (𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵)) |
| 5 | brcnvssr 38895 | . . . . . 6 ⊢ (𝑢 ∈ V → (𝑢◡ S 𝐸 ↔ 𝐸 ⊆ 𝑢)) | |
| 6 | 5 | elv 3432 | . . . . 5 ⊢ (𝑢◡ S 𝐸 ↔ 𝐸 ⊆ 𝑢) |
| 7 | 6 | anbi1i 625 | . . . 4 ⊢ ((𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷) ↔ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷)) |
| 8 | 4, 7 | anbi12i 629 | . . 3 ⊢ (((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ∧ (𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷)) ↔ ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷))) |
| 9 | 8 | rexbii 3082 | . 2 ⊢ (∃𝑢 ∈ 𝐴 ((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ∧ (𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷)) ↔ ∃𝑢 ∈ 𝐴 ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷))) |
| 10 | 1, 9 | bitrdi 287 | 1 ⊢ (((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑊) ∧ (𝐷 ∈ 𝑋 ∧ 𝐸 ∈ 𝑌)) → (〈𝐵, 𝐶〉 ≀ (𝑅 ⋉ (◡ S ↾ 𝐴))〈𝐷, 𝐸〉 ↔ ∃𝑢 ∈ 𝐴 ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷)))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 ∃wrex 3059 Vcvv 3427 ⊆ wss 3885 〈cop 4563 class class class wbr 5074 ◡ccnv 5619 ↾ cres 5622 ⋉ cxrn 38483 ≀ ccoss 38492 S cssr 38495 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-sep 5220 ax-nul 5230 ax-pr 5364 ax-un 7678 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-ral 3050 df-rex 3060 df-rab 3388 df-v 3429 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-br 5075 df-opab 5137 df-mpt 5156 df-id 5515 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-fo 6493 df-fv 6495 df-1st 7931 df-2nd 7932 df-xrn 38689 df-coss 38810 df-ssr 38887 |
| This theorem is referenced by: (None) |
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