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Mirrors > Home > MPE Home > Th. List > Mathboxes > mnugrud | Structured version Visualization version GIF version |
Description: Minimal universes are Grothendieck universes. (Contributed by Rohan Ridenour, 13-Aug-2023.) |
Ref | Expression |
---|---|
mnugrud.1 | ⊢ 𝑀 = {𝑘 ∣ ∀𝑙 ∈ 𝑘 (𝒫 𝑙 ⊆ 𝑘 ∧ ∀𝑚∃𝑛 ∈ 𝑘 (𝒫 𝑙 ⊆ 𝑛 ∧ ∀𝑝 ∈ 𝑙 (∃𝑞 ∈ 𝑘 (𝑝 ∈ 𝑞 ∧ 𝑞 ∈ 𝑚) → ∃𝑟 ∈ 𝑚 (𝑝 ∈ 𝑟 ∧ ∪ 𝑟 ⊆ 𝑛))))} |
mnugrud.2 | ⊢ (𝜑 → 𝑈 ∈ 𝑀) |
Ref | Expression |
---|---|
mnugrud | ⊢ (𝜑 → 𝑈 ∈ Univ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mnugrud.1 | . . 3 ⊢ 𝑀 = {𝑘 ∣ ∀𝑙 ∈ 𝑘 (𝒫 𝑙 ⊆ 𝑘 ∧ ∀𝑚∃𝑛 ∈ 𝑘 (𝒫 𝑙 ⊆ 𝑛 ∧ ∀𝑝 ∈ 𝑙 (∃𝑞 ∈ 𝑘 (𝑝 ∈ 𝑞 ∧ 𝑞 ∈ 𝑚) → ∃𝑟 ∈ 𝑚 (𝑝 ∈ 𝑟 ∧ ∪ 𝑟 ⊆ 𝑛))))} | |
2 | mnugrud.2 | . . 3 ⊢ (𝜑 → 𝑈 ∈ 𝑀) | |
3 | 1, 2 | mnutrd 41787 | . 2 ⊢ (𝜑 → Tr 𝑈) |
4 | 2 | adantr 480 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
5 | simpr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑥 ∈ 𝑈) | |
6 | 1, 4, 5 | mnupwd 41774 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝒫 𝑥 ∈ 𝑈) |
7 | 2 | ad2antrr 722 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
8 | 5 | adantr 480 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑥 ∈ 𝑈) |
9 | simpr 484 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑦 ∈ 𝑈) | |
10 | 1, 7, 8, 9 | mnuprd 41783 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → {𝑥, 𝑦} ∈ 𝑈) |
11 | 10 | ralrimiva 3107 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈) |
12 | 2 | ad2antrr 722 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑈 ∈ 𝑀) |
13 | 5 | adantr 480 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑥 ∈ 𝑈) |
14 | elmapi 8595 | . . . . . . . 8 ⊢ (𝑦 ∈ (𝑈 ↑m 𝑥) → 𝑦:𝑥⟶𝑈) | |
15 | 14 | adantl 481 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑦:𝑥⟶𝑈) |
16 | 1, 12, 13, 15 | mnurnd 41790 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ran 𝑦 ∈ 𝑈) |
17 | 1, 12, 16 | mnuunid 41784 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ∪ ran 𝑦 ∈ 𝑈) |
18 | 17 | ralrimiva 3107 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈) |
19 | 6, 11, 18 | 3jca 1126 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)) |
20 | 19 | ralrimiva 3107 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝑈 (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)) |
21 | elgrug 10479 | . . 3 ⊢ (𝑈 ∈ 𝑀 → (𝑈 ∈ Univ ↔ (Tr 𝑈 ∧ ∀𝑥 ∈ 𝑈 (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)))) | |
22 | 2, 21 | syl 17 | . 2 ⊢ (𝜑 → (𝑈 ∈ Univ ↔ (Tr 𝑈 ∧ ∀𝑥 ∈ 𝑈 (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)))) |
23 | 3, 20, 22 | mpbir2and 709 | 1 ⊢ (𝜑 → 𝑈 ∈ Univ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 ∀wal 1537 = wceq 1539 ∈ wcel 2108 {cab 2715 ∀wral 3063 ∃wrex 3064 ⊆ wss 3883 𝒫 cpw 4530 {cpr 4560 ∪ cuni 4836 Tr wtr 5187 ran crn 5581 ⟶wf 6414 (class class class)co 7255 ↑m cmap 8573 Univcgru 10477 |
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-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-reg 9281 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 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-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-fr 5535 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-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-1st 7804 df-2nd 7805 df-map 8575 df-gru 10478 |
This theorem is referenced by: grumnueq 41794 |
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