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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 7898 | . 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 3450 dom cdm 5655 |
| 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 2732 ax-sep 5251 ax-pr 5398 ax-un 7736 |
| 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 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 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 5663 df-dm 5665 df-rn 5666 |
| This theorem is used by: fndmexd 7901 unxpwdom2 9560 wemapwe 9676 imadomg 10537 fpwwe2lem11 10650 fpwwe2lem12 10651 hashdmpropge2 14548 prdsplusg 17543 prdsmulr 17544 prdsvsca 17545 prdshom 17552 ssclem 17908 subsubc 17942 efgrcl 19842 dprdgrp 20134 dprdf 20135 dprdssv 20145 f1lindf 22035 decpmatval0 22989 pmatcollpw3lem 23008 ordtrest2lem 23428 ordtrest2 23429 mbfmulc2re 25876 mbfneg 25878 dvnf 26154 dvnbss 26155 dchrptlem3 27502 gsummpt2d 33489 gsumfs2d 33501 cycpmco2lem5 33570 cycpmconjslem2 33595 trclubgNEW 44458 omecl 47331 sssmf 47566 mbfresmf 47567 smfpimltxr 47575 smfpimgtxr 47608 smfres 47618 smfco 47630 iinfssc 49983 |
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