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Mirrors > Home > MPE Home > Th. List > oiexg | Structured version Visualization version GIF version |
Description: The order isomorphism on a set is a set. (Contributed by Mario Carneiro, 25-Jun-2015.) |
Ref | Expression |
---|---|
oicl.1 | ⊢ 𝐹 = OrdIso(𝑅, 𝐴) |
Ref | Expression |
---|---|
oiexg | ⊢ (𝐴 ∈ 𝑉 → 𝐹 ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oicl.1 | . . . . 5 ⊢ 𝐹 = OrdIso(𝑅, 𝐴) | |
2 | 1 | ordtype 8320 | . . . 4 ⊢ ((𝑅 We 𝐴 ∧ 𝑅 Se 𝐴) → 𝐹 Isom E , 𝑅 (dom 𝐹, 𝐴)) |
3 | isof1o 6473 | . . . 4 ⊢ (𝐹 Isom E , 𝑅 (dom 𝐹, 𝐴) → 𝐹:dom 𝐹–1-1-onto→𝐴) | |
4 | f1of1 6049 | . . . 4 ⊢ (𝐹:dom 𝐹–1-1-onto→𝐴 → 𝐹:dom 𝐹–1-1→𝐴) | |
5 | 2, 3, 4 | 3syl 18 | . . 3 ⊢ ((𝑅 We 𝐴 ∧ 𝑅 Se 𝐴) → 𝐹:dom 𝐹–1-1→𝐴) |
6 | f1dmex 7029 | . . . . 5 ⊢ ((𝐹:dom 𝐹–1-1→𝐴 ∧ 𝐴 ∈ 𝑉) → dom 𝐹 ∈ V) | |
7 | f1f 6014 | . . . . . 6 ⊢ (𝐹:dom 𝐹–1-1→𝐴 → 𝐹:dom 𝐹⟶𝐴) | |
8 | fex 6394 | . . . . . 6 ⊢ ((𝐹:dom 𝐹⟶𝐴 ∧ dom 𝐹 ∈ V) → 𝐹 ∈ V) | |
9 | 7, 8 | sylan 487 | . . . . 5 ⊢ ((𝐹:dom 𝐹–1-1→𝐴 ∧ dom 𝐹 ∈ V) → 𝐹 ∈ V) |
10 | 6, 9 | syldan 486 | . . . 4 ⊢ ((𝐹:dom 𝐹–1-1→𝐴 ∧ 𝐴 ∈ 𝑉) → 𝐹 ∈ V) |
11 | 10 | expcom 450 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (𝐹:dom 𝐹–1-1→𝐴 → 𝐹 ∈ V)) |
12 | 5, 11 | syl5 33 | . 2 ⊢ (𝐴 ∈ 𝑉 → ((𝑅 We 𝐴 ∧ 𝑅 Se 𝐴) → 𝐹 ∈ V)) |
13 | 1 | oi0 8316 | . . 3 ⊢ (¬ (𝑅 We 𝐴 ∧ 𝑅 Se 𝐴) → 𝐹 = ∅) |
14 | 0ex 4718 | . . 3 ⊢ ∅ ∈ V | |
15 | 13, 14 | syl6eqel 2696 | . 2 ⊢ (¬ (𝑅 We 𝐴 ∧ 𝑅 Se 𝐴) → 𝐹 ∈ V) |
16 | 12, 15 | pm2.61d1 170 | 1 ⊢ (𝐴 ∈ 𝑉 → 𝐹 ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 383 = wceq 1475 ∈ wcel 1977 Vcvv 3173 ∅c0 3874 E cep 4947 Se wse 4995 We wwe 4996 dom cdm 5038 ⟶wf 5800 –1-1→wf1 5801 –1-1-onto→wf1o 5803 Isom wiso 5805 OrdIsocoi 8297 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-se 4998 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-isom 5813 df-riota 6511 df-wrecs 7294 df-recs 7355 df-oi 8298 |
This theorem is referenced by: oion 8324 oien 8326 cantnfval 8448 wemapwe 8477 finnisoeu 8819 cofsmo 8974 |
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