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| Mirrors > Home > MPE Home > Th. List > s2cld | Structured version Visualization version GIF version | ||
| Description: A doubleton word is a word. (Contributed by Mario Carneiro, 27-Feb-2016.) |
| Ref | Expression |
|---|---|
| s2cld.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑋) |
| s2cld.2 | ⊢ (𝜑 → 𝐵 ∈ 𝑋) |
| Ref | Expression |
|---|---|
| s2cld | ⊢ (𝜑 → 〈“𝐴𝐵”〉 ∈ Word 𝑋) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-s2 14922 | . 2 ⊢ 〈“𝐴𝐵”〉 = (〈“𝐴”〉 ++ 〈“𝐵”〉) | |
| 2 | s2cld.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑋) | |
| 3 | 2 | s1cld 14673 | . 2 ⊢ (𝜑 → 〈“𝐴”〉 ∈ Word 𝑋) |
| 4 | s2cld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝑋) | |
| 5 | 1, 3, 4 | cats1cld 14929 | 1 ⊢ (𝜑 → 〈“𝐴𝐵”〉 ∈ Word 𝑋) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Word cword 14581 〈“cs1 14665 〈“cs2 14915 |
| 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 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 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-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-1st 7987 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8458 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-card 9947 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-n0 12532 df-z 12619 df-uz 12891 df-fz 13565 df-fzo 13713 df-hash 14398 df-word 14582 df-concat 14639 df-s1 14666 df-s2 14922 |
| This theorem is used by: s3cld 14946 s2cl 14952 s3co 14995 psgnunilem2 19625 efglem 19846 efgtf 19852 efgtlen 19856 efginvrel2 19857 efgredleme 19873 efgredlemc 19875 efgcpbllemb 19885 frgpuplem 19902 frgpnabllem1 20003 1wlkdlem1 30610 wlk2v2elem1 30638 cycpm2tr 33562 cycpm2cl 33563 cyc2fv1 33564 cyc2fv2 33565 cycpmco2 33576 cyc2fvx 33577 cyc3co2 33583 cyc3genpmlem 33594 cyc3genpm 33595 cyc3conja 33600 elrgspnsubrunlem1 33690 lmat22lem 34330 lmat22e11 34331 lmat22e12 34332 lmat22e21 34333 lmat22e22 34334 lmat22det 34335 fib0 34913 fib1 34914 fibp1 34915 gsumws3 45039 amgm2d 45041 amgmw2d 50825 |
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