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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sprsymrelf1o | Structured version Visualization version GIF version | ||
| Description: The mapping 𝐹 is a bijection between the subsets of the set of pairs over a fixed set 𝑉 into the symmetric relations 𝑅 on the fixed set 𝑉. (Contributed by AV, 23-Nov-2021.) |
| Ref | Expression |
|---|---|
| sprsymrelf.p | ⊢ 𝑃 = 𝒫 (Pairs‘𝑉) |
| sprsymrelf.r | ⊢ 𝑅 = {𝑟 ∈ 𝒫 (𝑉 × 𝑉) ∣ ∀𝑥 ∈ 𝑉 ∀𝑦 ∈ 𝑉 (𝑥𝑟𝑦 ↔ 𝑦𝑟𝑥)} |
| sprsymrelf.f | ⊢ 𝐹 = (𝑝 ∈ 𝑃 ↦ {〈𝑥, 𝑦〉 ∣ ∃𝑐 ∈ 𝑝 𝑐 = {𝑥, 𝑦}}) |
| Ref | Expression |
|---|---|
| sprsymrelf1o | ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–1-1-onto→𝑅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sprsymrelf.p | . . . 4 ⊢ 𝑃 = 𝒫 (Pairs‘𝑉) | |
| 2 | sprsymrelf.r | . . . 4 ⊢ 𝑅 = {𝑟 ∈ 𝒫 (𝑉 × 𝑉) ∣ ∀𝑥 ∈ 𝑉 ∀𝑦 ∈ 𝑉 (𝑥𝑟𝑦 ↔ 𝑦𝑟𝑥)} | |
| 3 | sprsymrelf.f | . . . 4 ⊢ 𝐹 = (𝑝 ∈ 𝑃 ↦ {〈𝑥, 𝑦〉 ∣ ∃𝑐 ∈ 𝑝 𝑐 = {𝑥, 𝑦}}) | |
| 4 | 1, 2, 3 | sprsymrelf1 47971 | . . 3 ⊢ 𝐹:𝑃–1-1→𝑅 |
| 5 | 4 | a1i 11 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–1-1→𝑅) |
| 6 | 1, 2, 3 | sprsymrelfo 47972 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–onto→𝑅) |
| 7 | df-f1o 6492 | . 2 ⊢ (𝐹:𝑃–1-1-onto→𝑅 ↔ (𝐹:𝑃–1-1→𝑅 ∧ 𝐹:𝑃–onto→𝑅)) | |
| 8 | 5, 6, 7 | sylanbrc 589 | 1 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–1-1-onto→𝑅) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 207 = wceq 1547 ∈ wcel 2119 ∀wral 3053 ∃wrex 3063 {crab 3391 𝒫 cpw 4529 {cpr 4557 class class class wbr 5072 {copab 5134 ↦ cmpt 5153 × cxp 5616 –1-1→wf1 6482 –onto→wfo 6483 –1-1-onto→wf1o 6484 ‘cfv 6485 Pairscspr 47952 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-spr 47953 |
| This theorem is referenced by: sprbisymrel 47974 uspgrbisymrelALT 48646 |
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