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Mathbox for Rohan Ridenour |
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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 43039 | . 2 ⊢ (𝜑 → Tr 𝑈) |
4 | 2 | adantr 482 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
5 | simpr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑥 ∈ 𝑈) | |
6 | 1, 4, 5 | mnupwd 43026 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝒫 𝑥 ∈ 𝑈) |
7 | 2 | ad2antrr 725 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
8 | 5 | adantr 482 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑥 ∈ 𝑈) |
9 | simpr 486 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑦 ∈ 𝑈) | |
10 | 1, 7, 8, 9 | mnuprd 43035 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → {𝑥, 𝑦} ∈ 𝑈) |
11 | 10 | ralrimiva 3147 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈) |
12 | 2 | ad2antrr 725 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑈 ∈ 𝑀) |
13 | 5 | adantr 482 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑥 ∈ 𝑈) |
14 | elmapi 8843 | . . . . . . . 8 ⊢ (𝑦 ∈ (𝑈 ↑m 𝑥) → 𝑦:𝑥⟶𝑈) | |
15 | 14 | adantl 483 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑦:𝑥⟶𝑈) |
16 | 1, 12, 13, 15 | mnurnd 43042 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ran 𝑦 ∈ 𝑈) |
17 | 1, 12, 16 | mnuunid 43036 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ∪ ran 𝑦 ∈ 𝑈) |
18 | 17 | ralrimiva 3147 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈) |
19 | 6, 11, 18 | 3jca 1129 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)) |
20 | 19 | ralrimiva 3147 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝑈 (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)) |
21 | elgrug 10787 | . . 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 712 | 1 ⊢ (𝜑 → 𝑈 ∈ Univ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 397 ∧ w3a 1088 ∀wal 1540 = wceq 1542 ∈ wcel 2107 {cab 2710 ∀wral 3062 ∃wrex 3071 ⊆ wss 3949 𝒫 cpw 4603 {cpr 4631 ∪ cuni 4909 Tr wtr 5266 ran crn 5678 ⟶wf 6540 (class class class)co 7409 ↑m cmap 8820 Univcgru 10785 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-reg 9587 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-ral 3063 df-rex 3072 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-fr 5632 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-fv 6552 df-ov 7412 df-oprab 7413 df-mpo 7414 df-1st 7975 df-2nd 7976 df-map 8822 df-gru 10786 |
This theorem is referenced by: grumnueq 43046 |
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