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Mirrors > Home > MPE Home > Th. List > dpjdisj | Structured version Visualization version GIF version |
Description: The two subgroups that appear in dpjval 19640 are disjoint. (Contributed by Mario Carneiro, 26-Apr-2016.) |
Ref | Expression |
---|---|
dpjfval.1 | ⊢ (𝜑 → 𝐺dom DProd 𝑆) |
dpjfval.2 | ⊢ (𝜑 → dom 𝑆 = 𝐼) |
dpjlem.3 | ⊢ (𝜑 → 𝑋 ∈ 𝐼) |
dpjdisj.0 | ⊢ 0 = (0g‘𝐺) |
Ref | Expression |
---|---|
dpjdisj | ⊢ (𝜑 → ((𝑆‘𝑋) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = { 0 }) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dpjfval.1 | . . . 4 ⊢ (𝜑 → 𝐺dom DProd 𝑆) | |
2 | dpjfval.2 | . . . 4 ⊢ (𝜑 → dom 𝑆 = 𝐼) | |
3 | dpjlem.3 | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐼) | |
4 | 1, 2, 3 | dpjlem 19635 | . . 3 ⊢ (𝜑 → (𝐺 DProd (𝑆 ↾ {𝑋})) = (𝑆‘𝑋)) |
5 | 4 | ineq1d 4150 | . 2 ⊢ (𝜑 → ((𝐺 DProd (𝑆 ↾ {𝑋})) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = ((𝑆‘𝑋) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋}))))) |
6 | 1, 2 | dprdf2 19591 | . . . . 5 ⊢ (𝜑 → 𝑆:𝐼⟶(SubGrp‘𝐺)) |
7 | disjdif 4410 | . . . . . 6 ⊢ ({𝑋} ∩ (𝐼 ∖ {𝑋})) = ∅ | |
8 | 7 | a1i 11 | . . . . 5 ⊢ (𝜑 → ({𝑋} ∩ (𝐼 ∖ {𝑋})) = ∅) |
9 | undif2 4415 | . . . . . 6 ⊢ ({𝑋} ∪ (𝐼 ∖ {𝑋})) = ({𝑋} ∪ 𝐼) | |
10 | 3 | snssd 4747 | . . . . . . 7 ⊢ (𝜑 → {𝑋} ⊆ 𝐼) |
11 | ssequn1 4118 | . . . . . . 7 ⊢ ({𝑋} ⊆ 𝐼 ↔ ({𝑋} ∪ 𝐼) = 𝐼) | |
12 | 10, 11 | sylib 217 | . . . . . 6 ⊢ (𝜑 → ({𝑋} ∪ 𝐼) = 𝐼) |
13 | 9, 12 | eqtr2id 2792 | . . . . 5 ⊢ (𝜑 → 𝐼 = ({𝑋} ∪ (𝐼 ∖ {𝑋}))) |
14 | eqid 2739 | . . . . 5 ⊢ (Cntz‘𝐺) = (Cntz‘𝐺) | |
15 | dpjdisj.0 | . . . . 5 ⊢ 0 = (0g‘𝐺) | |
16 | 6, 8, 13, 14, 15 | dmdprdsplit 19631 | . . . 4 ⊢ (𝜑 → (𝐺dom DProd 𝑆 ↔ ((𝐺dom DProd (𝑆 ↾ {𝑋}) ∧ 𝐺dom DProd (𝑆 ↾ (𝐼 ∖ {𝑋}))) ∧ (𝐺 DProd (𝑆 ↾ {𝑋})) ⊆ ((Cntz‘𝐺)‘(𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) ∧ ((𝐺 DProd (𝑆 ↾ {𝑋})) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = { 0 }))) |
17 | 1, 16 | mpbid 231 | . . 3 ⊢ (𝜑 → ((𝐺dom DProd (𝑆 ↾ {𝑋}) ∧ 𝐺dom DProd (𝑆 ↾ (𝐼 ∖ {𝑋}))) ∧ (𝐺 DProd (𝑆 ↾ {𝑋})) ⊆ ((Cntz‘𝐺)‘(𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) ∧ ((𝐺 DProd (𝑆 ↾ {𝑋})) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = { 0 })) |
18 | 17 | simp3d 1142 | . 2 ⊢ (𝜑 → ((𝐺 DProd (𝑆 ↾ {𝑋})) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = { 0 }) |
19 | 5, 18 | eqtr3d 2781 | 1 ⊢ (𝜑 → ((𝑆‘𝑋) ∩ (𝐺 DProd (𝑆 ↾ (𝐼 ∖ {𝑋})))) = { 0 }) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 ∖ cdif 3888 ∪ cun 3889 ∩ cin 3890 ⊆ wss 3891 ∅c0 4261 {csn 4566 class class class wbr 5078 dom cdm 5588 ↾ cres 5590 ‘cfv 6430 (class class class)co 7268 0gc0g 17131 Cntzccntz 18902 DProd cdprd 19577 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-iin 4932 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-of 7524 df-om 7701 df-1st 7817 df-2nd 7818 df-supp 7962 df-tpos 8026 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-map 8591 df-ixp 8660 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-fsupp 9090 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-nn 11957 df-2 12019 df-n0 12217 df-z 12303 df-uz 12565 df-fz 13222 df-fzo 13365 df-seq 13703 df-hash 14026 df-sets 16846 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-0g 17133 df-gsum 17134 df-mre 17276 df-mrc 17277 df-acs 17279 df-mgm 18307 df-sgrp 18356 df-mnd 18367 df-mhm 18411 df-submnd 18412 df-grp 18561 df-minusg 18562 df-sbg 18563 df-mulg 18682 df-subg 18733 df-ghm 18813 df-gim 18856 df-cntz 18904 df-oppg 18931 df-lsm 19222 df-cmn 19369 df-dprd 19579 |
This theorem is referenced by: dpjf 19641 dpjidcl 19642 dpjlid 19645 dpjghm 19647 |
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