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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 2484 | . . . . 5 ⊢ {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} = {𝑦 ∣ (𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥)} | |
| 2 | vex 2766 | . . . . . . . 8 ⊢ 𝑦 ∈ V | |
| 3 | vex 2766 | . . . . . . . 8 ⊢ 𝑥 ∈ V | |
| 4 | 2, 3 | breldm 4871 | . . . . . . 7 ⊢ (𝑦𝑅𝑥 → 𝑦 ∈ dom 𝑅) |
| 5 | 4 | adantl 277 | . . . . . 6 ⊢ ((𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥) → 𝑦 ∈ dom 𝑅) |
| 6 | 5 | abssi 3259 | . . . . 5 ⊢ {𝑦 ∣ (𝑦 ∈ 𝐴 ∧ 𝑦𝑅𝑥)} ⊆ dom 𝑅 |
| 7 | 1, 6 | eqsstri 3216 | . . . 4 ⊢ {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ⊆ dom 𝑅 |
| 8 | dmexg 4931 | . . . 4 ⊢ (𝑅 ∈ 𝑉 → dom 𝑅 ∈ V) | |
| 9 | ssexg 4173 | . . . 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 2571 | . 2 ⊢ (𝑅 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 {𝑦 ∈ 𝐴 ∣ 𝑦𝑅𝑥} ∈ V) |
| 12 | df-se 4369 | . 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 2167 {cab 2182 ∀wral 2475 {crab 2479 Vcvv 2763 ⊆ wss 3157 class class class wbr 4034 Se wse 4365 dom cdm 4664 |
| 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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4152 ax-pow 4208 ax-pr 4243 ax-un 4469 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-br 4035 df-opab 4096 df-se 4369 df-cnv 4672 df-dm 4674 df-rn 4675 |
| This theorem is referenced by: (None) |
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