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Mirrors > Home > MPE Home > Th. List > reldmdprd | Structured version Visualization version GIF version |
Description: The domain of the internal direct product operation is a relation. (Contributed by Mario Carneiro, 25-Apr-2016.) (Proof shortened by AV, 11-Jul-2019.) |
Ref | Expression |
---|---|
reldmdprd | ⊢ Rel dom DProd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-dprd 18394 | . 2 ⊢ DProd = (𝑔 ∈ Grp, 𝑠 ∈ {ℎ ∣ (ℎ:dom ℎ⟶(SubGrp‘𝑔) ∧ ∀𝑥 ∈ dom ℎ(∀𝑦 ∈ (dom ℎ ∖ {𝑥})(ℎ‘𝑥) ⊆ ((Cntz‘𝑔)‘(ℎ‘𝑦)) ∧ ((ℎ‘𝑥) ∩ ((mrCls‘(SubGrp‘𝑔))‘∪ (ℎ “ (dom ℎ ∖ {𝑥})))) = {(0g‘𝑔)}))} ↦ ran (𝑓 ∈ {ℎ ∈ X𝑥 ∈ dom 𝑠(𝑠‘𝑥) ∣ ℎ finSupp (0g‘𝑔)} ↦ (𝑔 Σg 𝑓))) | |
2 | 1 | reldmmpt2 6771 | 1 ⊢ Rel dom DProd |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 384 = wceq 1483 {cab 2608 ∀wral 2912 {crab 2916 ∖ cdif 3571 ∩ cin 3573 ⊆ wss 3574 {csn 4177 ∪ cuni 4436 class class class wbr 4653 ↦ cmpt 4729 dom cdm 5114 ran crn 5115 “ cima 5117 Rel wrel 5119 ⟶wf 5884 ‘cfv 5888 (class class class)co 6650 Xcixp 7908 finSupp cfsupp 8275 0gc0g 16100 Σg cgsu 16101 mrClscmrc 16243 Grpcgrp 17422 SubGrpcsubg 17588 Cntzccntz 17748 DProd cdprd 18392 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-xp 5120 df-rel 5121 df-dm 5124 df-oprab 6654 df-mpt2 6655 df-dprd 18394 |
This theorem is referenced by: dprddomprc 18399 dprdval0prc 18401 dprdval 18402 dprdgrp 18404 dprdf 18405 dprdssv 18415 subgdmdprd 18433 dprd2da 18441 dpjfval 18454 |
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