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Mirrors > Home > MPE Home > Th. List > wrdexg | Structured version Visualization version GIF version |
Description: The set of words over a set is a set. (Contributed by Mario Carneiro, 26-Feb-2016.) (Proof shortened by JJ, 18-Nov-2022.) |
Ref | Expression |
---|---|
wrdexg | ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wrdval 14552 | . 2 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 = ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙))) | |
2 | nn0ex 12530 | . . 3 ⊢ ℕ0 ∈ V | |
3 | ovexd 7466 | . . . 4 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝑙 ∈ ℕ0) → (𝑆 ↑m (0..^𝑙)) ∈ V) | |
4 | 3 | ralrimiva 3144 | . . 3 ⊢ (𝑆 ∈ 𝑉 → ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) |
5 | iunexg 7987 | . . 3 ⊢ ((ℕ0 ∈ V ∧ ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) → ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) | |
6 | 2, 4, 5 | sylancr 587 | . 2 ⊢ (𝑆 ∈ 𝑉 → ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) |
7 | 1, 6 | eqeltrd 2839 | 1 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2106 ∀wral 3059 Vcvv 3478 ∪ ciun 4996 (class class class)co 7431 ↑m cmap 8865 0cc0 11153 ℕ0cn0 12524 ..^cfzo 13691 Word cword 14549 |
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 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-10 2139 ax-11 2155 ax-12 2175 ax-ext 2706 ax-rep 5285 ax-sep 5302 ax-nul 5312 ax-pow 5371 ax-pr 5438 ax-un 7754 ax-cnex 11209 ax-1cn 11211 ax-addcl 11213 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-nf 1781 df-sb 2063 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2727 df-clel 2814 df-nfc 2890 df-ne 2939 df-ral 3060 df-rex 3069 df-reu 3379 df-rab 3434 df-v 3480 df-sbc 3792 df-csb 3909 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-pss 3983 df-nul 4340 df-if 4532 df-pw 4607 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5583 df-eprel 5589 df-po 5597 df-so 5598 df-fr 5641 df-we 5643 df-xp 5695 df-rel 5696 df-cnv 5697 df-co 5698 df-dm 5699 df-rn 5700 df-res 5701 df-ima 5702 df-pred 6323 df-ord 6389 df-on 6390 df-lim 6391 df-suc 6392 df-iota 6516 df-fun 6565 df-fn 6566 df-f 6567 df-f1 6568 df-fo 6569 df-f1o 6570 df-fv 6571 df-ov 7434 df-oprab 7435 df-mpo 7436 df-om 7888 df-2nd 8014 df-frecs 8305 df-wrecs 8336 df-recs 8410 df-rdg 8449 df-map 8867 df-nn 12265 df-n0 12525 df-word 14550 |
This theorem is referenced by: wrdexb 14560 wrdexi 14561 wrdnfi 14583 elovmpowrd 14593 elovmptnn0wrd 14594 wrd2f1tovbij 14996 frmdbas 18878 frmdplusg 18880 efgval 19750 frgp0 19793 frgpmhm 19798 vrgpf 19801 vrgpinv 19802 frgpupf 19806 frgpup1 19808 frgpup2 19809 frgpup3lem 19810 frgpnabllem1 19906 frgpnabllem2 19907 wksfval 29642 wksvOLD 29653 wwlks 29865 clwwlk 30012 gsumwrd2dccat 33053 tocycval 33111 elrgspnlem1 33232 elrgspnlem2 33233 elrgspnlem3 33234 elrgspnlem4 33235 sseqval 34370 upwlksfval 47979 |
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