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| Mirrors > Home > ILE Home > Th. List > exse2 | GIF version | ||
| Description: Any set relation is set-like. (Contributed by Mario Carneiro, 22-Jun-2015.) |
| Ref | Expression |
|---|---|
| exse2 | ⊢ (𝑅 ∈ 𝑉 → 𝑅 Se 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rab 2494 | . . . . 5 ⊢ {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} = {𝑦 ∣ (𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥)} | |
| 2 | vex 2776 | . . . . . . . 8 ⊢ 𝑦 ∈ V | |
| 3 | vex 2776 | . . . . . . . 8 ⊢ 𝑥 ∈ V | |
| 4 | 2, 3 | breldm 4891 | . . . . . . 7 ⊢ (𝑦𝑅𝑥 → 𝑦 ∈ dom 𝑅) |
| 5 | 4 | adantl 277 | . . . . . 6 ⊢ ((𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥) → 𝑦 ∈ dom 𝑅) |
| 6 | 5 | abssi 3272 | . . . . 5 ⊢ {𝑦 ∣ (𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥)} ⊆ dom 𝑅 |
| 7 | 1, 6 | eqsstri 3229 | . . . 4 ⊢ {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ⊆ dom 𝑅 |
| 8 | dmexg 4951 | . . . 4 ⊢ (𝑅 ∈ 𝑉 → dom 𝑅 ∈ V) | |
| 9 | ssexg 4191 | . . . 4 ⊢ (({𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ⊆ dom 𝑅 ∧ dom 𝑅 ∈ V) → {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ∈ V) | |
| 10 | 7, 8, 9 | sylancr 414 | . . 3 ⊢ (𝑅 ∈ 𝑉 → {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ∈ V) |
| 11 | 10 | ralrimivw 2581 | . 2 ⊢ (𝑅 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ∈ V) |
| 12 | df-se 4388 | . 2 ⊢ (𝑅 Se 𝐴 ↔ ∀𝑥 ∈ 𝐴 {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ∈ V) | |
| 13 | 11, 12 | sylibr 134 | 1 ⊢ (𝑅 ∈ 𝑉 → 𝑅 Se 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2177 {cab 2192 ∀wral 2485 {crab 2489 Vcvv 2773 ⊆ wss 3170 class class class wbr 4051 Se wse 4384 dom cdm 4683 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2179 ax-14 2180 ax-ext 2188 ax-sep 4170 ax-pow 4226 ax-pr 4261 ax-un 4488 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ral 2490 df-rex 2491 df-rab 2494 df-v 2775 df-un 3174 df-in 3176 df-ss 3183 df-pw 3623 df-sn 3644 df-pr 3645 df-op 3647 df-uni 3857 df-br 4052 df-opab 4114 df-se 4388 df-cnv 4691 df-dm 4693 df-rn 4694 |
| This theorem is referenced by: (None) |
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