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| Mirrors > Home > MPE Home > Th. List > reldmmpo | Structured version Visualization version GIF version | ||
| Description: The domain of an operation defined by maps-to notation is a relation. (Contributed by Stefan O'Rear, 27-Nov-2014.) |
| Ref | Expression |
|---|---|
| rngop.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) |
| Ref | Expression |
|---|---|
| reldmmpo | ⊢ Rel dom 𝐹 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reldmoprab 7508 | . 2 ⊢ Rel dom {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} | |
| 2 | rngop.1 | . . . . 5 ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
| 3 | df-mpo 7404 | . . . . 5 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} | |
| 4 | 2, 3 | eqtri 2757 | . . . 4 ⊢ 𝐹 = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} |
| 5 | 4 | dmeqi 5881 | . . 3 ⊢ dom 𝐹 = dom {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} |
| 6 | 5 | releqi 5753 | . 2 ⊢ (Rel dom 𝐹 ↔ Rel dom {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)}) |
| 7 | 1, 6 | mpbir 231 | 1 ⊢ Rel dom 𝐹 |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 = wceq 1539 ∈ wcel 2107 dom cdm 5651 Rel wrel 5656 {coprab 7400 ∈ cmpo 7401 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-sep 5263 ax-nul 5273 ax-pr 5399 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-rab 3414 df-v 3459 df-dif 3927 df-un 3929 df-ss 3941 df-nul 4307 df-if 4499 df-sn 4600 df-pr 4602 df-op 4606 df-br 5117 df-opab 5179 df-xp 5657 df-rel 5658 df-dm 5661 df-oprab 7403 df-mpo 7404 |
| This theorem is referenced by: reldmmap 8843 reldmrelexp 15027 reldmsets 17169 reldmress 17238 reldmprds 17447 gsum0 18647 reldmghm 19182 oppglsm 19608 reldmdprd 19965 reldmlmhm 20968 zrhval 21453 reldmdsmm 21678 frlmrcl 21702 reldmpsr 21859 reldmmpl 21933 reldmopsr 21988 reldmevls 22027 reldmmhp 22060 vr1val 22112 reldmevls1 22240 evl1fval 22251 matbas0pc 22332 mdetfval 22509 madufval 22560 qtopres 23621 fgabs 23802 reldmtng 24562 reldmnghm 24636 reldmnmhm 24637 dvbsss 25840 reldmmdeg 25999 nbgrprc0 29245 wwlksn 29751 of0r 32589 reldmrloc 33170 erlval 33171 reldmresv 33262 bj-restsnid 37026 mzpmfp 42695 brovmptimex 43976 clnbgrprc0 47752 grimdmrel 47811 grlimdmrel 47892 1aryenef 48511 2aryenef 48522 reldmup 48931 upfval 48932 reldmup2 48937 reldmxpcALT 48970 fucofvalne 49042 |
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