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| Mirrors > Home > MPE Home > Th. List > wunccl | Structured version Visualization version GIF version | ||
| Description: The weak universe closure of a set is a weak universe. (Contributed by Mario Carneiro, 2-Jan-2017.) |
| Ref | Expression |
|---|---|
| wunccl | ⊢ (𝐴 ∈ 𝑉 → (wUniCl‘𝐴) ∈ WUni) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wuncval 10756 | . 2 ⊢ (𝐴 ∈ 𝑉 → (wUniCl‘𝐴) = ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢}) | |
| 2 | ssrab2 4055 | . . 3 ⊢ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ⊆ WUni | |
| 3 | wunex 10753 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → ∃𝑢 ∈ WUni 𝐴 ⊆ 𝑢) | |
| 4 | rabn0 4364 | . . . 4 ⊢ ({𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅ ↔ ∃𝑢 ∈ WUni 𝐴 ⊆ 𝑢) | |
| 5 | 3, 4 | sylibr 234 | . . 3 ⊢ (𝐴 ∈ 𝑉 → {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅) |
| 6 | intwun 10749 | . . 3 ⊢ (({𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ⊆ WUni ∧ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ≠ ∅) → ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ∈ WUni) | |
| 7 | 2, 5, 6 | sylancr 587 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∩ {𝑢 ∈ WUni ∣ 𝐴 ⊆ 𝑢} ∈ WUni) |
| 8 | 1, 7 | eqeltrd 2834 | 1 ⊢ (𝐴 ∈ 𝑉 → (wUniCl‘𝐴) ∈ WUni) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2108 ≠ wne 2932 ∃wrex 3060 {crab 3415 ⊆ wss 3926 ∅c0 4308 ∩ cint 4922 ‘cfv 6531 WUnicwun 10714 wUniClcwunm 10715 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-rep 5249 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 ax-inf2 9655 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-reu 3360 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-pss 3946 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-int 4923 df-iun 4969 df-iin 4970 df-br 5120 df-opab 5182 df-mpt 5202 df-tr 5230 df-id 5548 df-eprel 5553 df-po 5561 df-so 5562 df-fr 5606 df-we 5608 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6290 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-ov 7408 df-om 7862 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-wun 10716 df-wunc 10717 |
| This theorem is referenced by: wuncidm 10760 wuncval2 10761 |
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