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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 41481 | . 2 ⊢ (𝜑 → Tr 𝑈) |
4 | 2 | adantr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
5 | simpr 488 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝑥 ∈ 𝑈) | |
6 | 1, 4, 5 | mnupwd 41468 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝒫 𝑥 ∈ 𝑈) |
7 | 2 | ad2antrr 726 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑈 ∈ 𝑀) |
8 | 5 | adantr 484 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑥 ∈ 𝑈) |
9 | simpr 488 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → 𝑦 ∈ 𝑈) | |
10 | 1, 7, 8, 9 | mnuprd 41477 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ 𝑈) → {𝑥, 𝑦} ∈ 𝑈) |
11 | 10 | ralrimiva 3097 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈) |
12 | 2 | ad2antrr 726 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑈 ∈ 𝑀) |
13 | 5 | adantr 484 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑥 ∈ 𝑈) |
14 | elmapi 8472 | . . . . . . . 8 ⊢ (𝑦 ∈ (𝑈 ↑m 𝑥) → 𝑦:𝑥⟶𝑈) | |
15 | 14 | adantl 485 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → 𝑦:𝑥⟶𝑈) |
16 | 1, 12, 13, 15 | mnurnd 41484 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ran 𝑦 ∈ 𝑈) |
17 | 1, 12, 16 | mnuunid 41478 | . . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑈) ∧ 𝑦 ∈ (𝑈 ↑m 𝑥)) → ∪ ran 𝑦 ∈ 𝑈) |
18 | 17 | ralrimiva 3097 | . . . 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 3097 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝑈 (𝒫 𝑥 ∈ 𝑈 ∧ ∀𝑦 ∈ 𝑈 {𝑥, 𝑦} ∈ 𝑈 ∧ ∀𝑦 ∈ (𝑈 ↑m 𝑥)∪ ran 𝑦 ∈ 𝑈)) |
21 | elgrug 10305 | . . 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 713 | 1 ⊢ (𝜑 → 𝑈 ∈ Univ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1088 ∀wal 1540 = wceq 1542 ∈ wcel 2114 {cab 2717 ∀wral 3054 ∃wrex 3055 ⊆ wss 3853 𝒫 cpw 4498 {cpr 4528 ∪ cuni 4806 Tr wtr 5146 ran crn 5536 ⟶wf 6346 (class class class)co 7183 ↑m cmap 8450 Univcgru 10303 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2711 ax-sep 5177 ax-nul 5184 ax-pow 5242 ax-pr 5306 ax-un 7492 ax-reg 9142 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2541 df-eu 2571 df-clab 2718 df-cleq 2731 df-clel 2812 df-nfc 2882 df-ne 2936 df-ral 3059 df-rex 3060 df-rab 3063 df-v 3402 df-sbc 3686 df-csb 3801 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4222 df-if 4425 df-pw 4500 df-sn 4527 df-pr 4529 df-op 4533 df-uni 4807 df-iun 4893 df-br 5041 df-opab 5103 df-mpt 5121 df-tr 5147 df-id 5439 df-eprel 5444 df-fr 5493 df-xp 5541 df-rel 5542 df-cnv 5543 df-co 5544 df-dm 5545 df-rn 5546 df-res 5547 df-ima 5548 df-iota 6308 df-fun 6352 df-fn 6353 df-f 6354 df-fv 6358 df-ov 7186 df-oprab 7187 df-mpo 7188 df-1st 7727 df-2nd 7728 df-map 8452 df-gru 10304 |
This theorem is referenced by: grumnueq 41488 |
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