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Mirrors > Home > MPE Home > Th. List > s4dom | Structured version Visualization version GIF version |
Description: The domain of a length 4 word is the union of two (disjunct) pairs. (Contributed by Alexander van der Vekens, 15-Aug-2017.) |
Ref | Expression |
---|---|
s4dom | ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → (𝐸 = 〈“𝐴𝐵𝐶𝐷”〉 → dom 𝐸 = ({0, 1} ∪ {2, 3}))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmeq 5825 | . . 3 ⊢ (𝐸 = 〈“𝐴𝐵𝐶𝐷”〉 → dom 𝐸 = dom 〈“𝐴𝐵𝐶𝐷”〉) | |
2 | s4prop 14668 | . . . . 5 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → 〈“𝐴𝐵𝐶𝐷”〉 = ({〈0, 𝐴〉, 〈1, 𝐵〉} ∪ {〈2, 𝐶〉, 〈3, 𝐷〉})) | |
3 | 2 | dmeqd 5827 | . . . 4 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → dom 〈“𝐴𝐵𝐶𝐷”〉 = dom ({〈0, 𝐴〉, 〈1, 𝐵〉} ∪ {〈2, 𝐶〉, 〈3, 𝐷〉})) |
4 | dmun 5832 | . . . . 5 ⊢ dom ({〈0, 𝐴〉, 〈1, 𝐵〉} ∪ {〈2, 𝐶〉, 〈3, 𝐷〉}) = (dom {〈0, 𝐴〉, 〈1, 𝐵〉} ∪ dom {〈2, 𝐶〉, 〈3, 𝐷〉}) | |
5 | dmpropg 6133 | . . . . . . 7 ⊢ ((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) → dom {〈0, 𝐴〉, 〈1, 𝐵〉} = {0, 1}) | |
6 | 5 | adantr 482 | . . . . . 6 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → dom {〈0, 𝐴〉, 〈1, 𝐵〉} = {0, 1}) |
7 | dmpropg 6133 | . . . . . . 7 ⊢ ((𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆) → dom {〈2, 𝐶〉, 〈3, 𝐷〉} = {2, 3}) | |
8 | 7 | adantl 483 | . . . . . 6 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → dom {〈2, 𝐶〉, 〈3, 𝐷〉} = {2, 3}) |
9 | 6, 8 | uneq12d 4104 | . . . . 5 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → (dom {〈0, 𝐴〉, 〈1, 𝐵〉} ∪ dom {〈2, 𝐶〉, 〈3, 𝐷〉}) = ({0, 1} ∪ {2, 3})) |
10 | 4, 9 | eqtrid 2788 | . . . 4 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → dom ({〈0, 𝐴〉, 〈1, 𝐵〉} ∪ {〈2, 𝐶〉, 〈3, 𝐷〉}) = ({0, 1} ∪ {2, 3})) |
11 | 3, 10 | eqtrd 2776 | . . 3 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → dom 〈“𝐴𝐵𝐶𝐷”〉 = ({0, 1} ∪ {2, 3})) |
12 | 1, 11 | sylan9eqr 2798 | . 2 ⊢ ((((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) ∧ 𝐸 = 〈“𝐴𝐵𝐶𝐷”〉) → dom 𝐸 = ({0, 1} ∪ {2, 3})) |
13 | 12 | ex 414 | 1 ⊢ (((𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆) ∧ (𝐶 ∈ 𝑆 ∧ 𝐷 ∈ 𝑆)) → (𝐸 = 〈“𝐴𝐵𝐶𝐷”〉 → dom 𝐸 = ({0, 1} ∪ {2, 3}))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 397 = wceq 1539 ∈ wcel 2104 ∪ cun 3890 {cpr 4567 〈cop 4571 dom cdm 5600 0cc0 10917 1c1 10918 2c2 12074 3c3 12075 〈“cs4 14601 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-rep 5218 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 ax-un 7620 ax-cnex 10973 ax-resscn 10974 ax-1cn 10975 ax-icn 10976 ax-addcl 10977 ax-addrcl 10978 ax-mulcl 10979 ax-mulrcl 10980 ax-mulcom 10981 ax-addass 10982 ax-mulass 10983 ax-distr 10984 ax-i2m1 10985 ax-1ne0 10986 ax-1rid 10987 ax-rnegex 10988 ax-rrecex 10989 ax-cnre 10990 ax-pre-lttri 10991 ax-pre-lttrn 10992 ax-pre-ltadd 10993 ax-pre-mulgt0 10994 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-reu 3286 df-rab 3287 df-v 3439 df-sbc 3722 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-int 4887 df-iun 4933 df-br 5082 df-opab 5144 df-mpt 5165 df-tr 5199 df-id 5500 df-eprel 5506 df-po 5514 df-so 5515 df-fr 5555 df-we 5557 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-ima 5613 df-pred 6217 df-ord 6284 df-on 6285 df-lim 6286 df-suc 6287 df-iota 6410 df-fun 6460 df-fn 6461 df-f 6462 df-f1 6463 df-fo 6464 df-f1o 6465 df-fv 6466 df-riota 7264 df-ov 7310 df-oprab 7311 df-mpo 7312 df-om 7745 df-1st 7863 df-2nd 7864 df-frecs 8128 df-wrecs 8159 df-recs 8233 df-rdg 8272 df-1o 8328 df-er 8529 df-en 8765 df-dom 8766 df-sdom 8767 df-fin 8768 df-card 9741 df-pnf 11057 df-mnf 11058 df-xr 11059 df-ltxr 11060 df-le 11061 df-sub 11253 df-neg 11254 df-nn 12020 df-2 12082 df-3 12083 df-n0 12280 df-z 12366 df-uz 12629 df-fz 13286 df-fzo 13429 df-hash 14091 df-word 14263 df-concat 14319 df-s1 14346 df-s2 14606 df-s3 14607 df-s4 14608 |
This theorem is referenced by: (None) |
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