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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 8069 | . 2 ⊢ 𝐹 Fn (𝐴 × 𝐵) |
| 4 | 3 | fndmi 6642 | 1 ⊢ dom 𝐹 = (𝐴 × 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 ∈ wcel 2108 Vcvv 3459 × cxp 5652 dom cdm 5654 ∈ cmpo 7407 |
| 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 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-sep 5266 ax-nul 5276 ax-pr 5402 ax-un 7729 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ral 3052 df-rex 3061 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-nul 4309 df-if 4501 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-iun 4969 df-br 5120 df-opab 5182 df-mpt 5202 df-id 5548 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-fv 6539 df-oprab 7409 df-mpo 7410 df-1st 7988 df-2nd 7989 |
| This theorem is referenced by: 1div0 11896 1div0OLD 11897 swrd00 14662 swrd0 14676 pfx00 14692 pfx0 14693 repsundef 14789 cshnz 14810 imasvscafn 17551 imasvscaval 17552 iscnp2 23177 xkococnlem 23597 ucnima 24219 ucnprima 24220 tngtopn 24589 1div0apr 30449 smatlem 33828 elunirnmbfm 34283 rrxsphere 48728 oppfrcl 49076 |
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