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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 14641 | . 2 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 = ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙))) | |
| 2 | nn0ex 12593 | . . 3 ⊢ ℕ0 ∈ V | |
| 3 | ovexd 7447 | . . . 4 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝑙 ∈ ℕ0) → (𝑆 ↑m (0..^𝑙)) ∈ V) | |
| 4 | 3 | ralrimiva 3155 | . . 3 ⊢ (𝑆 ∈ 𝑉 → ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) |
| 5 | iunexg 7964 | . . 3 ⊢ ((ℕ0 ∈ V ∧ ∀𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) → ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) | |
| 6 | 2, 4, 5 | sylancr 599 | . 2 ⊢ (𝑆 ∈ 𝑉 → ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙)) ∈ V) |
| 7 | 1, 6 | eqeltrd 2861 | 1 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2145 ∀wral 3077 Vcvv 3451 ∪ ciun 4951 (class class class)co 7412 ↑m cmap 8831 0cc0 11181 ℕ0cn0 12587 ..^cfzo 13768 Word cword 14638 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-1cn 11239 ax-addcl 11241 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-map 8833 df-nn 12317 df-n0 12588 df-word 14639 |
| This theorem is used by: wrdexb 14650 wrdexi 14651 wrdnfi 14673 elovmpowrd 14683 elovmptnn0wrd 14684 wrd2f1tovbij 15093 chnexg 18772 frmdbas 19028 frmdplusg 19030 efgval 19911 frgp0 19954 frgpmhm 19959 vrgpf 19962 vrgpinv 19963 frgpupf 19967 frgpup1 19969 frgpup2 19970 frgpup3lem 19971 frgpnabllem1 20067 frgpnabllem2 20068 wksfval 30172 wwlks 30406 clwwlk 30556 gsumwrd2dccat 33621 tocycval 33651 elrgspnlem1 33785 elrgspnlem2 33786 elrgspnlem3 33787 elrgspnlem4 33788 elrgspn 33789 elrgspnsubrunlem1 33790 elrgspnsubrunlem2 33791 sseqval 35003 upwlksfval 49177 |
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