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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 39471 | . 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 39519 | . . . . . 6 ⊢ (𝑢 ∈ V → (𝑢◡ S 𝐶 ↔ 𝐶 ⊆ 𝑢)) | |
| 3 | 2 | elv 3455 | . . . . 5 ⊢ (𝑢◡ S 𝐶 ↔ 𝐶 ⊆ 𝑢) |
| 4 | 3 | anbi1i 636 | . . . 4 ⊢ ((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ↔ (𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵)) |
| 5 | brcnvssr 39519 | . . . . . 6 ⊢ (𝑢 ∈ V → (𝑢◡ S 𝐸 ↔ 𝐸 ⊆ 𝑢)) | |
| 6 | 5 | elv 3455 | . . . . 5 ⊢ (𝑢◡ S 𝐸 ↔ 𝐸 ⊆ 𝑢) |
| 7 | 6 | anbi1i 636 | . . . 4 ⊢ ((𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷) ↔ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷)) |
| 8 | 4, 7 | anbi12i 640 | . . 3 ⊢ (((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ∧ (𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷)) ↔ ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷))) |
| 9 | 8 | rexbii 3109 | . 2 ⊢ (∃𝑢 ∈ 𝐴 ((𝑢◡ S 𝐶 ∧ 𝑢𝑅𝐵) ∧ (𝑢◡ S 𝐸 ∧ 𝑢𝑅𝐷)) ↔ ∃𝑢 ∈ 𝐴 ((𝐶 ⊆ 𝑢 ∧ 𝑢𝑅𝐵) ∧ (𝐸 ⊆ 𝑢 ∧ 𝑢𝑅𝐷))) |
| 10 | 1, 9 | bitrdi 290 | 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 |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∈ wcel 2144 ∃wrex 3086 Vcvv 3450 ⊆ wss 3895 〈cop 4589 class class class wbr 5102 ◡ccnv 5649 ↾ cres 5652 ⋉ cxrn 39107 ≀ ccoss 39116 S cssr 39119 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-fo 6544 df-fv 6546 df-1st 8001 df-2nd 8002 df-xrn 39313 df-coss 39434 df-ssr 39511 |
| This theorem is used by: (None) |
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