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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 47510 | . . 3 ⊢ 𝐹:𝑃–1-1→𝑅 |
| 5 | 4 | a1i 11 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–1-1→𝑅) |
| 6 | 1, 2, 3 | sprsymrelfo 47511 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–onto→𝑅) |
| 7 | df-f1o 6538 | . 2 ⊢ (𝐹:𝑃–1-1-onto→𝑅 ↔ (𝐹:𝑃–1-1→𝑅 ∧ 𝐹:𝑃–onto→𝑅)) | |
| 8 | 5, 6, 7 | sylanbrc 583 | 1 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃–1-1-onto→𝑅) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1540 ∈ wcel 2108 ∀wral 3051 ∃wrex 3060 {crab 3415 𝒫 cpw 4575 {cpr 4603 class class class wbr 5119 {copab 5181 ↦ cmpt 5201 × cxp 5652 –1-1→wf1 6528 –onto→wfo 6529 –1-1-onto→wf1o 6530 ‘cfv 6531 Pairscspr 47491 |
| 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 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-rep 5249 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-iun 4969 df-br 5120 df-opab 5182 df-mpt 5202 df-id 5548 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-spr 47492 |
| This theorem is referenced by: sprbisymrel 47513 uspgrbisymrelALT 48130 |
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