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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 14148 | . 2 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 = ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙))) | |
2 | nn0ex 12169 | . . 3 ⊢ ℕ0 ∈ V | |
3 | ovexd 7290 | . . . 4 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝑙 ∈ ℕ0) → (𝑆 ↑m (0..^𝑙)) ∈ V) | |
4 | 3 | ralrimiva 3107 | . . 3 ⊢ (𝑆 ∈ 𝑉 → ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) |
5 | iunexg 7779 | . . 3 ⊢ ((ℕ0 ∈ V ∧ ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) → ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) | |
6 | 2, 4, 5 | sylancr 586 | . 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 2108 ∀wral 3063 Vcvv 3422 ∪ ciun 4921 (class class class)co 7255 ↑m cmap 8573 0cc0 10802 ℕ0cn0 12163 ..^cfzo 13311 Word cword 14145 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-1cn 10860 ax-addcl 10862 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-map 8575 df-nn 11904 df-n0 12164 df-word 14146 |
This theorem is referenced by: wrdexb 14156 wrdexi 14157 wrdnfi 14179 elovmpowrd 14189 elovmptnn0wrd 14190 wrd2f1tovbij 14603 frmdbas 18406 frmdplusg 18408 efgval 19238 frgp0 19281 frgpmhm 19286 vrgpf 19289 vrgpinv 19290 frgpupf 19294 frgpup1 19296 frgpup2 19297 frgpup3lem 19298 frgpnabllem1 19389 frgpnabllem2 19390 wksfval 27879 wksv 27889 wwlks 28101 clwwlk 28248 tocycval 31277 sseqval 32255 upwlksfval 45185 |
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