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Mirrors > Home > MPE Home > Th. List > acufl | Structured version Visualization version GIF version |
Description: The axiom of choice implies the ultrafilter lemma. (Contributed by Mario Carneiro, 26-Aug-2015.) |
Ref | Expression |
---|---|
acufl | ⊢ (CHOICE → UFL = V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 3497 | . . . . . . 7 ⊢ 𝑥 ∈ V | |
2 | 1 | pwex 5273 | . . . . . 6 ⊢ 𝒫 𝑥 ∈ V |
3 | 2 | pwex 5273 | . . . . 5 ⊢ 𝒫 𝒫 𝑥 ∈ V |
4 | dfac10 9557 | . . . . . 6 ⊢ (CHOICE ↔ dom card = V) | |
5 | 4 | biimpi 218 | . . . . 5 ⊢ (CHOICE → dom card = V) |
6 | 3, 5 | eleqtrrid 2920 | . . . 4 ⊢ (CHOICE → 𝒫 𝒫 𝑥 ∈ dom card) |
7 | numufl 22517 | . . . 4 ⊢ (𝒫 𝒫 𝑥 ∈ dom card → 𝑥 ∈ UFL) | |
8 | 6, 7 | syl 17 | . . 3 ⊢ (CHOICE → 𝑥 ∈ UFL) |
9 | 1 | a1i 11 | . . 3 ⊢ (CHOICE → 𝑥 ∈ V) |
10 | 8, 9 | 2thd 267 | . 2 ⊢ (CHOICE → (𝑥 ∈ UFL ↔ 𝑥 ∈ V)) |
11 | 10 | eqrdv 2819 | 1 ⊢ (CHOICE → UFL = V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2110 Vcvv 3494 𝒫 cpw 4538 dom cdm 5549 cardccrd 9358 CHOICEwac 9535 UFLcufl 22502 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-rep 5182 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-int 4869 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-tr 5165 df-id 5454 df-eprel 5459 df-po 5468 df-so 5469 df-fr 5508 df-se 5509 df-we 5510 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-pred 6142 df-ord 6188 df-on 6189 df-lim 6190 df-suc 6191 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-isom 6358 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-rpss 7443 df-om 7575 df-1st 7683 df-2nd 7684 df-wrecs 7941 df-recs 8002 df-rdg 8040 df-1o 8096 df-oadd 8100 df-er 8283 df-en 8504 df-dom 8505 df-fin 8507 df-fi 8869 df-dju 9324 df-card 9362 df-ac 9536 df-fbas 20536 df-fg 20537 df-fil 22448 df-ufil 22503 df-ufl 22504 |
This theorem is referenced by: ptcmp 22660 dfac21 39659 |
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