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Mirrors > Home > MPE Home > Th. List > elfvexd | Structured version Visualization version GIF version |
Description: If a function value is nonempty, its argument is a set. Deduction form of elfvex 6131. (Contributed by David Moews, 1-May-2017.) |
Ref | Expression |
---|---|
elfvexd.1 | ⊢ (𝜑 → 𝐴 ∈ (𝐵‘𝐶)) |
Ref | Expression |
---|---|
elfvexd | ⊢ (𝜑 → 𝐶 ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfvexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝐵‘𝐶)) | |
2 | elfvex 6131 | . 2 ⊢ (𝐴 ∈ (𝐵‘𝐶) → 𝐶 ∈ V) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → 𝐶 ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 Vcvv 3173 ‘cfv 5804 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-nul 4717 ax-pow 4769 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-dm 5048 df-iota 5768 df-fv 5812 |
This theorem is referenced by: mrieqv2d 16122 mreexmrid 16126 mreexexlem3d 16129 mreexexlem4d 16130 mreexexd 16131 mreexexdOLD 16132 mreexdomd 16133 acsdomd 17004 ismgmn0 17067 telgsumfz 18210 isirred 18522 tgclb 20585 alexsublem 21658 cnextcn 21681 ustssel 21819 fmucnd 21906 trcfilu 21908 cfiluweak 21909 ucnextcn 21918 imasdsf1olem 21988 imasf1oxmet 21990 comet 22128 restmetu 22185 esumcvg 29475 mzpcl34 36312 dvnprodlem1 38836 1loopgredg 40716 1egrvtxdg0 40727 1wlkp1lem4 40885 1wlkp1lem8 40889 11wlkdlem4 41307 eupth2lem3lem1 41396 eupth2lem3lem2 41397 |
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