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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 6221. (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 6221 | . 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 1990 Vcvv 3200 ‘cfv 5888 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-nul 4789 ax-pow 4843 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-dm 5124 df-iota 5851 df-fv 5896 |
This theorem is referenced by: mrieqv2d 16299 mreexmrid 16303 mreexexlem3d 16306 mreexexlem4d 16307 mreexexd 16308 mreexexdOLD 16309 mreexdomd 16310 acsdomd 17181 ismgmn0 17244 telgsumfz 18387 isirred 18699 tgclb 20774 alexsublem 21848 cnextcn 21871 ustssel 22009 fmucnd 22096 trcfilu 22098 cfiluweak 22099 ucnextcn 22108 imasdsf1olem 22178 imasf1oxmet 22180 comet 22318 restmetu 22375 wlkp1lem4 26573 wlkp1lem8 26577 1wlkdlem4 27000 eupth2lem3lem1 27088 eupth2lem3lem2 27089 mzpcl34 37294 xlimbr 40053 xlimmnfvlem2 40059 xlimpnfvlem2 40063 |
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