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Mirrors > Home > MPE Home > Th. List > tskwun | Structured version Visualization version GIF version |
Description: A nonempty transitive Tarski class is a weak universe. (Contributed by Mario Carneiro, 2-Jan-2017.) |
Ref | Expression |
---|---|
tskwun | ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → 𝑇 ∈ WUni) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp2 1138 | . 2 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → Tr 𝑇) | |
2 | simp3 1139 | . 2 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → 𝑇 ≠ ∅) | |
3 | tskuni 10283 | . . . . . 6 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑥 ∈ 𝑇) → ∪ 𝑥 ∈ 𝑇) | |
4 | 3 | 3expa 1119 | . . . . 5 ⊢ (((𝑇 ∈ Tarski ∧ Tr 𝑇) ∧ 𝑥 ∈ 𝑇) → ∪ 𝑥 ∈ 𝑇) |
5 | 4 | 3adantl3 1169 | . . . 4 ⊢ (((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) ∧ 𝑥 ∈ 𝑇) → ∪ 𝑥 ∈ 𝑇) |
6 | tskpw 10253 | . . . . 5 ⊢ ((𝑇 ∈ Tarski ∧ 𝑥 ∈ 𝑇) → 𝒫 𝑥 ∈ 𝑇) | |
7 | 6 | 3ad2antl1 1186 | . . . 4 ⊢ (((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) ∧ 𝑥 ∈ 𝑇) → 𝒫 𝑥 ∈ 𝑇) |
8 | tskpr 10270 | . . . . . . . 8 ⊢ ((𝑇 ∈ Tarski ∧ 𝑥 ∈ 𝑇 ∧ 𝑦 ∈ 𝑇) → {𝑥, 𝑦} ∈ 𝑇) | |
9 | 8 | 3exp 1120 | . . . . . . 7 ⊢ (𝑇 ∈ Tarski → (𝑥 ∈ 𝑇 → (𝑦 ∈ 𝑇 → {𝑥, 𝑦} ∈ 𝑇))) |
10 | 9 | 3ad2ant1 1134 | . . . . . 6 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → (𝑥 ∈ 𝑇 → (𝑦 ∈ 𝑇 → {𝑥, 𝑦} ∈ 𝑇))) |
11 | 10 | imp31 421 | . . . . 5 ⊢ ((((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) ∧ 𝑥 ∈ 𝑇) ∧ 𝑦 ∈ 𝑇) → {𝑥, 𝑦} ∈ 𝑇) |
12 | 11 | ralrimiva 3096 | . . . 4 ⊢ (((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) ∧ 𝑥 ∈ 𝑇) → ∀𝑦 ∈ 𝑇 {𝑥, 𝑦} ∈ 𝑇) |
13 | 5, 7, 12 | 3jca 1129 | . . 3 ⊢ (((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) ∧ 𝑥 ∈ 𝑇) → (∪ 𝑥 ∈ 𝑇 ∧ 𝒫 𝑥 ∈ 𝑇 ∧ ∀𝑦 ∈ 𝑇 {𝑥, 𝑦} ∈ 𝑇)) |
14 | 13 | ralrimiva 3096 | . 2 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → ∀𝑥 ∈ 𝑇 (∪ 𝑥 ∈ 𝑇 ∧ 𝒫 𝑥 ∈ 𝑇 ∧ ∀𝑦 ∈ 𝑇 {𝑥, 𝑦} ∈ 𝑇)) |
15 | iswun 10204 | . . 3 ⊢ (𝑇 ∈ Tarski → (𝑇 ∈ WUni ↔ (Tr 𝑇 ∧ 𝑇 ≠ ∅ ∧ ∀𝑥 ∈ 𝑇 (∪ 𝑥 ∈ 𝑇 ∧ 𝒫 𝑥 ∈ 𝑇 ∧ ∀𝑦 ∈ 𝑇 {𝑥, 𝑦} ∈ 𝑇)))) | |
16 | 15 | 3ad2ant1 1134 | . 2 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → (𝑇 ∈ WUni ↔ (Tr 𝑇 ∧ 𝑇 ≠ ∅ ∧ ∀𝑥 ∈ 𝑇 (∪ 𝑥 ∈ 𝑇 ∧ 𝒫 𝑥 ∈ 𝑇 ∧ ∀𝑦 ∈ 𝑇 {𝑥, 𝑦} ∈ 𝑇)))) |
17 | 1, 2, 14, 16 | mpbir3and 1343 | 1 ⊢ ((𝑇 ∈ Tarski ∧ Tr 𝑇 ∧ 𝑇 ≠ ∅) → 𝑇 ∈ WUni) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1088 ∈ wcel 2114 ≠ wne 2934 ∀wral 3053 ∅c0 4211 𝒫 cpw 4488 {cpr 4518 ∪ cuni 4796 Tr wtr 5136 WUnicwun 10200 Tarskictsk 10248 |
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 2710 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5232 ax-pr 5296 ax-un 7479 ax-inf2 9177 ax-ac2 9963 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-ral 3058 df-rex 3059 df-reu 3060 df-rmo 3061 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-pss 3862 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-tp 4521 df-op 4523 df-uni 4797 df-int 4837 df-iun 4883 df-iin 4884 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5429 df-eprel 5434 df-po 5442 df-so 5443 df-fr 5483 df-se 5484 df-we 5485 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-isom 6348 df-riota 7127 df-ov 7173 df-oprab 7174 df-mpo 7175 df-om 7600 df-1st 7714 df-2nd 7715 df-wrecs 7976 df-smo 8012 df-recs 8037 df-rdg 8075 df-1o 8131 df-2o 8132 df-er 8320 df-map 8439 df-ixp 8508 df-en 8556 df-dom 8557 df-sdom 8558 df-fin 8559 df-oi 9047 df-har 9094 df-r1 9266 df-card 9441 df-aleph 9442 df-cf 9443 df-acn 9444 df-ac 9616 df-wina 10184 df-ina 10185 df-wun 10202 df-tsk 10249 |
This theorem is referenced by: tskxp 10287 tskmap 10288 |
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