| Mathbox for Rohan Ridenour |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > gruex | Structured version Visualization version GIF version | ||
| Description: Assuming the Tarski-Grothendieck axiom, every set is contained in a Grothendieck universe. (Contributed by Rohan Ridenour, 13-Aug-2023.) |
| Ref | Expression |
|---|---|
| gruex | ⊢ ∃𝑦 ∈ Univ 𝑥 ∈ 𝑦 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rankon 9713 | . . 3 ⊢ (rank‘𝑥) ∈ On | |
| 2 | inaex 44745 | . . 3 ⊢ ((rank‘𝑥) ∈ On → ∃𝑧 ∈ Inacc (rank‘𝑥) ∈ 𝑧) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ ∃𝑧 ∈ Inacc (rank‘𝑥) ∈ 𝑧 |
| 4 | simplr 769 | . . . . . 6 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → (rank‘𝑥) ∈ 𝑧) | |
| 5 | inawina 10607 | . . . . . . . . 9 ⊢ (𝑧 ∈ Inacc → 𝑧 ∈ Inaccw) | |
| 6 | winaon 10605 | . . . . . . . . 9 ⊢ (𝑧 ∈ Inaccw → 𝑧 ∈ On) | |
| 7 | 5, 6 | syl 17 | . . . . . . . 8 ⊢ (𝑧 ∈ Inacc → 𝑧 ∈ On) |
| 8 | 7 | ad2antrr 727 | . . . . . . 7 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → 𝑧 ∈ On) |
| 9 | vex 3434 | . . . . . . . 8 ⊢ 𝑥 ∈ V | |
| 10 | 9 | rankr1a 9754 | . . . . . . 7 ⊢ (𝑧 ∈ On → (𝑥 ∈ (𝑅1‘𝑧) ↔ (rank‘𝑥) ∈ 𝑧)) |
| 11 | 8, 10 | syl 17 | . . . . . 6 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → (𝑥 ∈ (𝑅1‘𝑧) ↔ (rank‘𝑥) ∈ 𝑧)) |
| 12 | 4, 11 | mpbird 257 | . . . . 5 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → 𝑥 ∈ (𝑅1‘𝑧)) |
| 13 | simpr 484 | . . . . 5 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → 𝑦 = (𝑅1‘𝑧)) | |
| 14 | 12, 13 | eleqtrrd 2840 | . . . 4 ⊢ (((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) ∧ 𝑦 = (𝑅1‘𝑧)) → 𝑥 ∈ 𝑦) |
| 15 | simpl 482 | . . . . 5 ⊢ ((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) → 𝑧 ∈ Inacc) | |
| 16 | 15 | inagrud 44744 | . . . 4 ⊢ ((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) → (𝑅1‘𝑧) ∈ Univ) |
| 17 | 14, 16 | rspcime 3570 | . . 3 ⊢ ((𝑧 ∈ Inacc ∧ (rank‘𝑥) ∈ 𝑧) → ∃𝑦 ∈ Univ 𝑥 ∈ 𝑦) |
| 18 | 17 | rexlimiva 3131 | . 2 ⊢ (∃𝑧 ∈ Inacc (rank‘𝑥) ∈ 𝑧 → ∃𝑦 ∈ Univ 𝑥 ∈ 𝑦) |
| 19 | 3, 18 | ax-mp 5 | 1 ⊢ ∃𝑦 ∈ Univ 𝑥 ∈ 𝑦 |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∃wrex 3062 Oncon0 6318 ‘cfv 6493 𝑅1cr1 9680 rankcrnk 9681 Inaccwcwina 10599 Inacccina 10600 Univcgru 10707 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-reg 9501 ax-inf2 9556 ax-ac2 10379 ax-groth 10740 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-smo 8280 df-recs 8305 df-rdg 8343 df-1o 8399 df-2o 8400 df-er 8637 df-map 8769 df-ixp 8840 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-oi 9419 df-har 9466 df-r1 9682 df-rank 9683 df-card 9857 df-aleph 9858 df-cf 9859 df-acn 9860 df-ac 10032 df-wina 10601 df-ina 10602 df-tsk 10666 df-gru 10708 |
| This theorem is referenced by: rr-groth 44747 rr-grothprim 44748 rr-grothshort 44752 |
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