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Mirrors > Home > MPE Home > Th. List > wunndx | Structured version Visualization version GIF version |
Description: Closure of the index extractor in an infinite weak universe. (Contributed by Mario Carneiro, 12-Jan-2017.) |
Ref | Expression |
---|---|
wunndx.1 | ⊢ (𝜑 → 𝑈 ∈ WUni) |
wunndx.2 | ⊢ (𝜑 → ω ∈ 𝑈) |
Ref | Expression |
---|---|
wunndx | ⊢ (𝜑 → ndx ∈ 𝑈) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ndx 16488 | . 2 ⊢ ndx = ( I ↾ ℕ) | |
2 | wunndx.1 | . . 3 ⊢ (𝜑 → 𝑈 ∈ WUni) | |
3 | wunndx.2 | . . . . 5 ⊢ (𝜑 → ω ∈ 𝑈) | |
4 | 2, 3 | wuncn 10594 | . . . 4 ⊢ (𝜑 → ℂ ∈ 𝑈) |
5 | nnsscn 11645 | . . . . 5 ⊢ ℕ ⊆ ℂ | |
6 | 5 | a1i 11 | . . . 4 ⊢ (𝜑 → ℕ ⊆ ℂ) |
7 | 2, 4, 6 | wunss 10136 | . . 3 ⊢ (𝜑 → ℕ ∈ 𝑈) |
8 | f1oi 6654 | . . . 4 ⊢ ( I ↾ ℕ):ℕ–1-1-onto→ℕ | |
9 | f1of 6617 | . . . 4 ⊢ (( I ↾ ℕ):ℕ–1-1-onto→ℕ → ( I ↾ ℕ):ℕ⟶ℕ) | |
10 | 8, 9 | mp1i 13 | . . 3 ⊢ (𝜑 → ( I ↾ ℕ):ℕ⟶ℕ) |
11 | 2, 7, 7, 10 | wunf 10151 | . 2 ⊢ (𝜑 → ( I ↾ ℕ) ∈ 𝑈) |
12 | 1, 11 | eqeltrid 2919 | 1 ⊢ (𝜑 → ndx ∈ 𝑈) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3938 I cid 5461 ↾ cres 5559 ⟶wf 6353 –1-1-onto→wf1o 6356 ωcom 7582 WUnicwun 10124 ℂcc 10537 ℕcn 11640 ndxcnx 16482 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-inf2 9106 ax-1cn 10597 ax-addcl 10599 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-ral 3145 df-rex 3146 df-reu 3147 df-rmo 3148 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-int 4879 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-1st 7691 df-2nd 7692 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-1o 8104 df-oadd 8108 df-omul 8109 df-er 8291 df-ec 8293 df-qs 8297 df-map 8410 df-pm 8411 df-wun 10126 df-ni 10296 df-pli 10297 df-mi 10298 df-lti 10299 df-plpq 10332 df-mpq 10333 df-ltpq 10334 df-enq 10335 df-nq 10336 df-erq 10337 df-plq 10338 df-mq 10339 df-1nq 10340 df-rq 10341 df-ltnq 10342 df-np 10405 df-plp 10407 df-ltp 10409 df-enr 10479 df-nr 10480 df-c 10545 df-nn 11641 df-ndx 16488 |
This theorem is referenced by: wunress 16566 1strwun 16603 catcoppccl 17370 catcfuccl 17371 catcxpccl 17459 |
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