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| Mirrors > Home > MPE Home > Th. List > dmmpt | Structured version Visualization version GIF version | ||
| Description: The domain of the mapping operation in general. (Contributed by NM, 16-May-1995.) (Revised by Mario Carneiro, 22-Mar-2015.) |
| Ref | Expression |
|---|---|
| dmmpt.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
| Ref | Expression |
|---|---|
| dmmpt | ⊢ dom 𝐹 = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfdm4 5844 | . 2 ⊢ dom 𝐹 = ran ◡𝐹 | |
| 2 | dfrn4 6160 | . 2 ⊢ ran ◡𝐹 = (◡𝐹 “ V) | |
| 3 | dmmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 4 | 3 | mptpreima 6196 | . 2 ⊢ (◡𝐹 “ V) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
| 5 | 1, 2, 4 | 3eqtri 2763 | 1 ⊢ dom 𝐹 = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2113 {crab 3399 Vcvv 3440 ↦ cmpt 5179 ◡ccnv 5623 dom cdm 5624 ran crn 5625 “ cima 5627 |
| 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 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-br 5099 df-opab 5161 df-mpt 5180 df-xp 5630 df-rel 5631 df-cnv 5632 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 |
| This theorem is referenced by: dmmptss 6199 dmmptg 6200 dmmptd 6637 fvmpti 6940 fvmptss 6953 fvmptss2 6967 mptexgf 7168 tz9.12lem3 9701 cardf2 9855 pmtrsn 19448 00lsp 20932 rgrx0ndm 29667 abrexexd 32584 funcnvmpt 32745 mptctf 32795 issibf 34490 rdgprc0 35985 imageval 36122 dmmptdff 45467 dmmptssf 45476 dmmptdf2 45477 dvcosre 46156 itgsinexplem1 46198 stirlinglem14 46331 fvmptrabdm 47539 |
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