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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 7917 | . 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 2144 Vcvv 3450 dom cdm 5651 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5391 ax-un 7755 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-cnv 5659 df-dm 5661 df-rn 5662 |
| This theorem is used by: fndmexd 7920 unxpwdom2 9589 wemapwe 9705 imadomg 10620 fpwwe2lem11 10733 fpwwe2lem12 10734 hashdmpropge2 14635 prdsplusg 17638 prdsmulr 17639 prdsvsca 17640 prdshom 17647 ssclem 18003 subsubc 18037 efgrcl 19938 dprdgrp 20230 dprdf 20231 dprdssv 20241 f1lindf 22137 decpmatval0 23091 pmatcollpw3lem 23110 ordtrest2lem 23530 ordtrest2 23531 mbfmulc2re 25978 mbfneg 25980 dvnf 26256 dvnbss 26257 dchrptlem3 27602 gsummpt2d 33660 gsumfs2d 33672 cycpmco2lem5 33741 cycpmconjslem2 33766 trclubgNEW 44727 omecl 47621 sssmf 47856 mbfresmf 47857 smfpimltxr 47865 smfpimgtxr 47898 smfres 47908 smfco 47920 iinfssc 50279 |
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