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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 20010 | . . 3 ⊢ (𝜑 → 𝐺dom DProd 𝑆) |
| 8 | 6 | dprdspan 19995 | . . 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 5974 | . . . . . . 7 ⊢ ((Rel 𝐴 ∧ dom 𝐴 ⊆ 𝐼) → (𝐴 ↾ 𝐼) = 𝐴) | |
| 11 | 1, 3, 10 | syl2anc 590 | . . . . . 6 ⊢ (𝜑 → (𝐴 ↾ 𝐼) = 𝐴) |
| 12 | 11 | imaeq2d 6012 | . . . . 5 ⊢ (𝜑 → (𝑆 “ (𝐴 ↾ 𝐼)) = (𝑆 “ 𝐴)) |
| 13 | ffn 6655 | . . . . . 6 ⊢ (𝑆:𝐴⟶(SubGrp‘𝐺) → 𝑆 Fn 𝐴) | |
| 14 | fnima 6615 | . . . . . 6 ⊢ (𝑆 Fn 𝐴 → (𝑆 “ 𝐴) = ran 𝑆) | |
| 15 | 2, 13, 14 | 3syl 18 | . . . . 5 ⊢ (𝜑 → (𝑆 “ 𝐴) = ran 𝑆) |
| 16 | 12, 15 | eqtr2d 2775 | . . . 4 ⊢ (𝜑 → ran 𝑆 = (𝑆 “ (𝐴 ↾ 𝐼))) |
| 17 | 16 | unieqd 4851 | . . 3 ⊢ (𝜑 → ∪ ran 𝑆 = ∪ (𝑆 “ (𝐴 ↾ 𝐼))) |
| 18 | 17 | fveq2d 6831 | . 2 ⊢ (𝜑 → (𝐾‘∪ ran 𝑆) = (𝐾‘∪ (𝑆 “ (𝐴 ↾ 𝐼)))) |
| 19 | ssidd 3938 | . . 3 ⊢ (𝜑 → 𝐼 ⊆ 𝐼) | |
| 20 | 1, 2, 3, 4, 5, 6, 19 | dprd2dlem1 20009 | . 2 ⊢ (𝜑 → (𝐾‘∪ (𝑆 “ (𝐴 ↾ 𝐼))) = (𝐺 DProd (𝑖 ∈ 𝐼 ↦ (𝐺 DProd (𝑗 ∈ (𝐴 “ {𝑖}) ↦ (𝑖𝑆𝑗)))))) |
| 21 | 9, 18, 20 | 3eqtrd 2778 | 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 396 = wceq 1547 ∈ wcel 2119 ⊆ wss 3883 {csn 4555 ∪ cuni 4838 class class class wbr 5072 ↦ cmpt 5153 dom cdm 5618 ran crn 5619 ↾ cres 5620 “ cima 5621 Rel wrel 5623 Fn wfn 6480 ⟶wf 6481 ‘cfv 6485 (class class class)co 7356 mrClscmrc 17536 SubGrpcsubg 19087 DProd cdprd 19961 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-rmo 3344 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-int 4878 df-iun 4923 df-iin 4924 df-br 5073 df-opab 5135 df-mpt 5154 df-tr 5180 df-id 5513 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5571 df-se 5572 df-we 5573 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-pred 6252 df-ord 6313 df-on 6314 df-lim 6315 df-suc 6316 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-isom 6494 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-of 7620 df-om 7807 df-1st 7931 df-2nd 7932 df-supp 8101 df-tpos 8166 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-1o 8395 df-2o 8396 df-er 8633 df-map 8765 df-ixp 8836 df-en 8884 df-dom 8885 df-sdom 8886 df-fin 8887 df-fsupp 9265 df-oi 9415 df-card 9854 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-n0 12429 df-z 12516 df-uz 12780 df-fz 13453 df-fzo 13600 df-seq 13955 df-hash 14284 df-sets 17125 df-slot 17143 df-ndx 17155 df-base 17171 df-ress 17192 df-plusg 17224 df-0g 17395 df-gsum 17396 df-mre 17539 df-mrc 17540 df-acs 17542 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-mhm 18742 df-submnd 18743 df-grp 18903 df-minusg 18904 df-sbg 18905 df-mulg 19035 df-subg 19090 df-ghm 19179 df-gim 19225 df-cntz 19283 df-oppg 19312 df-lsm 19602 df-cmn 19748 df-dprd 19963 |
| This theorem is referenced by: dprd2d2 20012 |
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