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Mirrors > Home > ILE Home > Th. List > mpt2exxg | GIF version |
Description: Existence of an operation class abstraction (version for dependent domains). (Contributed by Mario Carneiro, 30-Dec-2016.) |
Ref | Expression |
---|---|
mpt2exg.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) |
Ref | Expression |
---|---|
mpt2exxg | ⊢ ((𝐴 ∈ 𝑅 ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑆) → 𝐹 ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpt2exg.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
2 | 1 | mpt2fun 5603 | . 2 ⊢ Fun 𝐹 |
3 | 1 | dmmpt2ssx 5825 | . . 3 ⊢ dom 𝐹 ⊆ ∪ 𝑥 ∈ 𝐴 ({𝑥} × 𝐵) |
4 | vex 2560 | . . . . . . 7 ⊢ 𝑥 ∈ V | |
5 | snexg 3936 | . . . . . . 7 ⊢ (𝑥 ∈ V → {𝑥} ∈ V) | |
6 | 4, 5 | ax-mp 7 | . . . . . 6 ⊢ {𝑥} ∈ V |
7 | xpexg 4452 | . . . . . 6 ⊢ (({𝑥} ∈ V ∧ 𝐵 ∈ 𝑆) → ({𝑥} × 𝐵) ∈ V) | |
8 | 6, 7 | mpan 400 | . . . . 5 ⊢ (𝐵 ∈ 𝑆 → ({𝑥} × 𝐵) ∈ V) |
9 | 8 | ralimi 2384 | . . . 4 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑆 → ∀𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∈ V) |
10 | iunexg 5746 | . . . 4 ⊢ ((𝐴 ∈ 𝑅 ∧ ∀𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∈ V) → ∪ 𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∈ V) | |
11 | 9, 10 | sylan2 270 | . . 3 ⊢ ((𝐴 ∈ 𝑅 ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑆) → ∪ 𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∈ V) |
12 | ssexg 3896 | . . 3 ⊢ ((dom 𝐹 ⊆ ∪ 𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∧ ∪ 𝑥 ∈ 𝐴 ({𝑥} × 𝐵) ∈ V) → dom 𝐹 ∈ V) | |
13 | 3, 11, 12 | sylancr 393 | . 2 ⊢ ((𝐴 ∈ 𝑅 ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑆) → dom 𝐹 ∈ V) |
14 | funex 5384 | . 2 ⊢ ((Fun 𝐹 ∧ dom 𝐹 ∈ V) → 𝐹 ∈ V) | |
15 | 2, 13, 14 | sylancr 393 | 1 ⊢ ((𝐴 ∈ 𝑅 ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑆) → 𝐹 ∈ V) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 97 = wceq 1243 ∈ wcel 1393 ∀wral 2306 Vcvv 2557 ⊆ wss 2917 {csn 3375 ∪ ciun 3657 × cxp 4343 dom cdm 4345 Fun wfun 4896 ↦ cmpt2 5514 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-coll 3872 ax-sep 3875 ax-pow 3927 ax-pr 3944 ax-un 4170 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-reu 2313 df-rab 2315 df-v 2559 df-sbc 2765 df-csb 2853 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-iun 3659 df-br 3765 df-opab 3819 df-mpt 3820 df-id 4030 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-rn 4356 df-res 4357 df-ima 4358 df-iota 4867 df-fun 4904 df-fn 4905 df-f 4906 df-f1 4907 df-fo 4908 df-f1o 4909 df-fv 4910 df-oprab 5516 df-mpt2 5517 df-1st 5767 df-2nd 5768 |
This theorem is referenced by: mpt2exg 5834 mpt2ex 5836 |
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