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| Mirrors > Home > MPE Home > Th. List > dmexd | Structured version Visualization version GIF version | ||
| Description: The domain of a set is a set. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| dmexd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| dmexd | ⊢ (𝜑 → dom 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dmexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | dmexg 7911 | . 2 ⊢ (𝐴 ∈ 𝑉 → dom 𝐴 ∈ V) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → dom 𝐴 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Vcvv 3451 dom cdm 5651 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 ax-sep 5249 ax-pr 5391 ax-un 7749 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-cnv 5659 df-dm 5661 df-rn 5662 |
| This theorem is used by: fndmexd 7914 unxpwdom2 9575 wemapwe 9691 imadomg 10606 fpwwe2lem11 10719 fpwwe2lem12 10720 hashdmpropge2 14621 prdsplusg 17622 prdsmulr 17623 prdsvsca 17624 prdshom 17631 ssclem 17987 subsubc 18021 efgrcl 19922 dprdgrp 20214 dprdf 20215 dprdssv 20225 f1lindf 22121 decpmatval0 23075 pmatcollpw3lem 23094 ordtrest2lem 23514 ordtrest2 23515 mbfmulc2re 25962 mbfneg 25964 dvnf 26240 dvnbss 26241 dchrptlem3 27586 gsummpt2d 33603 gsumfs2d 33615 cycpmco2lem5 33684 cycpmconjslem2 33709 trclubgNEW 44603 omecl 47482 sssmf 47717 mbfresmf 47718 smfpimltxr 47726 smfpimgtxr 47759 smfres 47769 smfco 47781 iinfssc 50134 |
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