| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 8063 | . 2 ⊢ 𝐹 Fn (𝐴 × 𝐵) |
| 4 | 3 | fndmi 6639 | 1 ⊢ dom 𝐹 = (𝐴 × 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1570 ∈ wcel 2143 Vcvv 3455 × cxp 5659 dom cdm 5661 ∈ cmpo 7412 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 |
| This theorem is referenced by: 1div0 11868 swrd00 14678 swrd0 14692 pfx00 14708 pfx0 14709 repsundef 14804 cshnz 14825 imasvscafn 17586 imasvscaval 17587 iscnp2 23396 xkococnlem 23816 ucnima 24437 ucnprima 24438 tngtopn 24807 1div0apr 30819 smatlem 34187 elunirnmbfm 34642 rrxsphere 49548 |
| Copyright terms: Public domain | W3C validator |