Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > wuncval | Structured version Visualization version GIF version |
Description: Value of the weak universe closure operator. (Contributed by Mario Carneiro, 2-Jan-2017.) |
Ref | Expression |
---|---|
wuncval | ⊢ (𝐴 ∈ 𝑉 → (wUniCl‘𝐴) = ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-wunc 10390 | . 2 ⊢ wUniCl = (𝑥 ∈ V ↦ ∩ {𝑢 ∈ WUni ∣ 𝑥 ⊆ 𝑢}) | |
2 | sseq1 3942 | . . . 4 ⊢ (𝑥 = 𝐴 → (𝑥 ⊆ 𝑢 ↔ 𝐴 ⊆ 𝑢)) | |
3 | 2 | rabbidv 3404 | . . 3 ⊢ (𝑥 = 𝐴 → {𝑢 ∈ WUni ∣ 𝑥 ⊆ 𝑢} = {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢}) |
4 | 3 | inteqd 4881 | . 2 ⊢ (𝑥 = 𝐴 → ∩ {𝑢 ∈ WUni ∣ 𝑥 ⊆ 𝑢} = ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢}) |
5 | elex 3440 | . 2 ⊢ (𝐴 ∈ 𝑉 → 𝐴 ∈ V) | |
6 | wunex 10426 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → ∃𝑢 ∈ WUni 𝐴 ⊆ 𝑢) | |
7 | rabn0 4316 | . . . 4 ⊢ ({𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅ ↔ ∃𝑢 ∈ WUni 𝐴 ⊆ 𝑢) | |
8 | 6, 7 | sylibr 233 | . . 3 ⊢ (𝐴 ∈ 𝑉 → {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅) |
9 | intex 5256 | . . 3 ⊢ ({𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅ ↔ ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ∈ V) | |
10 | 8, 9 | sylib 217 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ∈ V) |
11 | 1, 4, 5, 10 | fvmptd3 6880 | 1 ⊢ (𝐴 ∈ 𝑉 → (wUniCl‘𝐴) = ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2108 ≠ wne 2942 ∃wrex 3064 {crab 3067 Vcvv 3422 ⊆ wss 3883 ∅c0 4253 ∩ cint 4876 ‘cfv 6418 WUnicwun 10387 wUniClcwunm 10388 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-inf2 9329 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-wun 10389 df-wunc 10390 |
This theorem is referenced by: wuncid 10430 wunccl 10431 wuncss 10432 |
Copyright terms: Public domain | W3C validator |