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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 7947 | . 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 2147 Vcvv 3454 dom cdm 5658 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5255 ax-pr 5398 ax-un 7783 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-cnv 5666 df-dm 5668 df-rn 5669 |
| This theorem is used by: fndmexd 7950 unxpwdom2 9619 wemapwe 9735 imadomg 10652 fpwwe2lem11 10765 fpwwe2lem12 10766 hashdmpropge2 14669 prdsplusg 17679 prdsmulr 17680 prdsvsca 17681 prdshom 17688 ssclem 18044 subsubc 18078 efgrcl 19980 dprdgrp 20272 dprdf 20273 dprdssv 20283 f1lindf 22183 decpmatval0 23137 pmatcollpw3lem 23156 ordtrest2lem 23576 ordtrest2 23577 mbfmulc2re 26024 mbfneg 26026 dvnf 26302 dvnbss 26303 dchrptlem3 27650 gsummpt2d 33709 gsumfs2d 33721 cycpmco2lem5 33790 cycpmconjslem2 33815 trclubgNEW 44879 omecl 47786 sssmf 48021 mbfresmf 48022 smfpimltxr 48030 smfpimgtxr 48063 smfres 48073 smfco 48085 iinfssc 50502 |
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