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| Mirrors > Home > MPE Home > Th. List > dprd2db | Structured version Visualization version GIF version | ||
| Description: The direct product of a collection of direct products. (Contributed by Mario Carneiro, 25-Apr-2016.) |
| Ref | Expression |
|---|---|
| dprd2d.1 | ⊢ (𝜑 → Rel 𝐴) |
| dprd2d.2 | ⊢ (𝜑 → 𝑆:𝐴⟶(SubGrp‘𝐺)) |
| dprd2d.3 | ⊢ (𝜑 → dom 𝐴 ⊆ 𝐼) |
| dprd2d.4 | ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐼) → 𝐺dom DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗))) |
| dprd2d.5 | ⊢ (𝜑 → 𝐺dom DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗))))) |
| dprd2d.k | ⊢ 𝐾 = (mrCls‘(SubGrp‘𝐺)) |
| Ref | Expression |
|---|---|
| dprd2db | ⊢ (𝜑 → (𝐺 DProd 𝑆) = (𝐺 DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗)))))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dprd2d.1 | . . . 4 ⊢ (𝜑 → Rel 𝐴) | |
| 2 | dprd2d.2 | . . . 4 ⊢ (𝜑 → 𝑆:𝐴⟶(SubGrp‘𝐺)) | |
| 3 | dprd2d.3 | . . . 4 ⊢ (𝜑 → dom 𝐴 ⊆ 𝐼) | |
| 4 | dprd2d.4 | . . . 4 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝐼) → 𝐺dom DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗))) | |
| 5 | dprd2d.5 | . . . 4 ⊢ (𝜑 → 𝐺dom DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗))))) | |
| 6 | dprd2d.k | . . . 4 ⊢ 𝐾 = (mrCls‘(SubGrp‘𝐺)) | |
| 7 | 1, 2, 3, 4, 5, 6 | dprd2da 19950 | . . 3 ⊢ (𝜑 → 𝐺dom DProd 𝑆) |
| 8 | 6 | dprdspan 19935 | . . 3 ⊢ (𝐺dom DProd 𝑆 → (𝐺 DProd 𝑆) = (𝐾‘∪ ran 𝑆)) |
| 9 | 7, 8 | syl 17 | . 2 ⊢ (𝜑 → (𝐺 DProd 𝑆) = (𝐾‘∪ ran 𝑆)) |
| 10 | relssres 5982 | . . . . . . 7 ⊢ ((Rel 𝐴 ∧ dom 𝐴 ⊆ 𝐼) → (𝐴 ↾ 𝐼) = 𝐴) | |
| 11 | 1, 3, 10 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → (𝐴 ↾ 𝐼) = 𝐴) |
| 12 | 11 | imaeq2d 6020 | . . . . 5 ⊢ (𝜑 → (𝑆 “ (𝐴 ↾ 𝐼)) = (𝑆 “ 𝐴)) |
| 13 | ffn 6670 | . . . . . 6 ⊢ (𝑆:𝐴⟶(SubGrp‘𝐺) → 𝑆 Fn 𝐴) | |
| 14 | fnima 6630 | . . . . . 6 ⊢ (𝑆 Fn 𝐴 → (𝑆 “ 𝐴) = ran 𝑆) | |
| 15 | 2, 13, 14 | 3syl 18 | . . . . 5 ⊢ (𝜑 → (𝑆 “ 𝐴) = ran 𝑆) |
| 16 | 12, 15 | eqtr2d 2765 | . . . 4 ⊢ (𝜑 → ran 𝑆 = (𝑆 “ (𝐴 ↾ 𝐼))) |
| 17 | 16 | unieqd 4880 | . . 3 ⊢ (𝜑 → ∪ ran 𝑆 = ∪ (𝑆 “ (𝐴 ↾ 𝐼))) |
| 18 | 17 | fveq2d 6844 | . 2 ⊢ (𝜑 → (𝐾‘∪ ran 𝑆) = (𝐾‘∪ (𝑆 “ (𝐴 ↾ 𝐼)))) |
| 19 | ssidd 3967 | . . 3 ⊢ (𝜑 → 𝐼 ⊆ 𝐼) | |
| 20 | 1, 2, 3, 4, 5, 6, 19 | dprd2dlem1 19949 | . 2 ⊢ (𝜑 → (𝐾‘∪ (𝑆 “ (𝐴 ↾ 𝐼))) = (𝐺 DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗)))))) |
| 21 | 9, 18, 20 | 3eqtrd 2768 | 1 ⊢ (𝜑 → (𝐺 DProd 𝑆) = (𝐺 DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗)))))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ⊆ wss 3911 {csn 4585 ∪ cuni 4867 class class class wbr 5102 ↦ cmpt 5183 dom cdm 5631 ran crn 5632 ↾ cres 5633 “ cima 5634 Rel wrel 5636 Fn wfn 6494 ⟶wf 6495 ‘cfv 6499 (class class class)co 7369 mrClscmrc 17520 SubGrpcsubg 19028 DProd cdprd 19901 |
| 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 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3351 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-int 4907 df-iun 4953 df-iin 4954 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-isom 6508 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-of 7633 df-om 7823 df-1st 7947 df-2nd 7948 df-supp 8117 df-tpos 8182 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-1o 8411 df-2o 8412 df-er 8648 df-map 8778 df-ixp 8848 df-en 8896 df-dom 8897 df-sdom 8898 df-fin 8899 df-fsupp 9289 df-oi 9439 df-card 9868 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-nn 12163 df-2 12225 df-n0 12419 df-z 12506 df-uz 12770 df-fz 13445 df-fzo 13592 df-seq 13943 df-hash 14272 df-sets 17110 df-slot 17128 df-ndx 17140 df-base 17156 df-ress 17177 df-plusg 17209 df-0g 17380 df-gsum 17381 df-mre 17523 df-mrc 17524 df-acs 17526 df-mgm 18543 df-sgrp 18622 df-mnd 18638 df-mhm 18686 df-submnd 18687 df-grp 18844 df-minusg 18845 df-sbg 18846 df-mulg 18976 df-subg 19031 df-ghm 19121 df-gim 19167 df-cntz 19225 df-oppg 19254 df-lsm 19542 df-cmn 19688 df-dprd 19903 |
| This theorem is referenced by: dprd2d2 19952 |
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