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| Mirrors > Home > MPE Home > Th. List > elfvexd | Structured version Visualization version GIF version | ||
| Description: If a function value has a member, then its argument is a set. Deduction form of elfvex 6920. (An artifact of our function value definition.) (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 6920 | . 2 ⊢ (𝐴 ∈ (𝐵‘𝐶) → 𝐶 ∈ V) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → 𝐶 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 Vcvv 3450 ‘cfv 6538 |
| 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-nul 5259 ax-pr 5390 |
| 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-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-dm 5660 df-iota 6494 df-fv 6546 |
| This theorem is used by: mrieqv2d 17813 mreexmrid 17817 mreexexlem3d 17820 mreexexlem4d 17821 mreexexd 17822 mreexdomd 17823 acsdomd 18731 ismgmn0 18818 ecqusaddcl 19408 telgsumfz 20204 isirred 20649 tgclb 23288 alexsublem 24363 cnextcn 24386 ustssel 24525 fmucnd 24610 trcfilu 24612 cfiluweak 24613 ucnextcn 24622 imasdsf1olem 24692 imasf1oxmet 24694 comet 24832 restmetu 24889 wlkp1lem4 30255 wlkp1lem8 30259 1wlkdlem4 30731 eupth2lem3lem1 30829 eupth2lem3lem2 30830 gsumsubg 33607 gsummptfzsplitla 33620 opprqusplusg 34013 opprqus0g 34014 lsssra 34220 lbsdiflsp0 34258 fedgmullem1 34261 mzpcl34 43742 xlimbr 46837 xlimmnfvlem2 46843 xlimpnfvlem2 46847 sectpropdlem 50144 invpropdlem 50146 isopropdlem 50148 cicpropdlem 50157 oppcup3 50317 elxpcbasex1ALT 50357 elxpcbasex2ALT 50359 swapf1 50380 |
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