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| Mirrors > Home > MPE Home > Th. List > dmmpo | Structured version Visualization version GIF version | ||
| Description: Domain of a class given by the maps-to notation. (Contributed by FL, 17-May-2010.) |
| Ref | Expression |
|---|---|
| fmpo.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) |
| fnmpoi.2 | ⊢ 𝐶 ∈ V |
| Ref | Expression |
|---|---|
| dmmpo | ⊢ dom 𝐹 = (𝐴 × 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fmpo.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
| 2 | fnmpoi.2 | . . 3 ⊢ 𝐶 ∈ V | |
| 3 | 1, 2 | fnmpoi 8012 | . 2 ⊢ 𝐹 Fn (𝐴 × 𝐵) |
| 4 | 3 | fndmi 6594 | 1 ⊢ dom 𝐹 = (𝐴 × 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2113 Vcvv 3438 × cxp 5620 dom cdm 5622 ∈ cmpo 7358 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pr 5375 ax-un 7678 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-ral 3050 df-rex 3059 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-iun 4946 df-br 5097 df-opab 5159 df-mpt 5178 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-fv 6498 df-oprab 7360 df-mpo 7361 df-1st 7931 df-2nd 7932 |
| This theorem is referenced by: 1div0 11794 1div0OLD 11795 swrd00 14566 swrd0 14580 pfx00 14596 pfx0 14597 repsundef 14692 cshnz 14713 imasvscafn 17456 imasvscaval 17457 iscnp2 23181 xkococnlem 23601 ucnima 24222 ucnprima 24223 tngtopn 24592 1div0apr 30492 smatlem 33903 elunirnmbfm 34358 rrxsphere 48936 |
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