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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 14585 | . 2 ⊢ (𝑆 ∈ 𝑉 → Word 𝑆 = ∪ 𝑙 ∈ ℕ0 (𝑆 ↑m (0..^𝑙))) | |
| 2 | nn0ex 12538 | . . 3 ⊢ ℕ0 ∈ V | |
| 3 | ovexd 7452 | . . . 4 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝑙 ∈ ℕ0) → (𝑆 ↑m (0..^𝑙)) ∈ V) | |
| 4 | 3 | ralrimiva 3156 | . . 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 2862 | 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 3078 Vcvv 3453 ∪ ciun 4954 (class class class)co 7417 ↑m cmap 8830 0cc0 11128 ℕ0cn0 12532 ..^cfzo 13713 Word cword 14582 |
| 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 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-1cn 11186 ax-addcl 11188 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-map 8832 df-nn 12262 df-n0 12533 df-word 14583 |
| This theorem is used by: wrdexb 14594 wrdexi 14595 wrdnfi 14617 elovmpowrd 14627 elovmptnn0wrd 14628 wrd2f1tovbij 15037 chnexg 18712 frmdbas 18967 frmdplusg 18969 efgval 19850 frgp0 19893 frgpmhm 19898 vrgpf 19901 vrgpinv 19902 frgpupf 19906 frgpup1 19908 frgpup2 19909 frgpup3lem 19910 frgpnabllem1 20006 frgpnabllem2 20007 wksfval 30077 wwlks 30311 clwwlk 30461 gsumwrd2dccat 33526 tocycval 33556 elrgspnlem1 33690 elrgspnlem2 33691 elrgspnlem3 33692 elrgspnlem4 33693 elrgspn 33694 elrgspnsubrunlem1 33695 elrgspnsubrunlem2 33696 sseqval 34907 upwlksfval 49059 |
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