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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⟶1-1onto𝑅) |
| 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 48851 | . . 3 ⊢ 𝐹:𝑃⟶1-1𝑅 |
| 5 | 4 | a1i 11 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃⟶1-1𝑅) |
| 6 | 1, 2, 3 | sprsymrelfo 48852 | . 2 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃⟶onto𝑅) |
| 7 | df-f1o 6573 | . 2 ⊢ (𝐹:𝑃⟶1-1onto𝑅 ↔ (𝐹:𝑃⟶1-1𝑅 ∧ 𝐹:𝑃⟶onto𝑅)) | |
| 8 | 5, 6, 7 | sylanbrc 595 | 1 ⊢ (𝑉 ∈ 𝑊 → 𝐹:𝑃⟶1-1onto𝑅) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2147 ∀wral 3080 ∃wrex 3090 {crab 3416 𝒫 cpw 4560 {cpr 4590 class class class wbr 5108 {copab 5173 ↦ cmpt 5192 × cxp 5656 ⟶1-1wf1 6563 ⟶ontowfo 6564 ⟶1-1ontowf1o 6565 ‘cfv 6566 Pairscspr 48832 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5238 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-spr 48833 |
| This theorem is used by: sprbisymrel 48854 uspgrbisymrelALT 49526 |
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