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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 6908. (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 6908 | . 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 2145 Vcvv 3450 ‘cfv 6527 |
| 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-nul 5259 ax-pr 5390 |
| 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-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-rab 3413 df-v 3452 df-dif 3901 df-un 3903 df-ss 3915 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-dm 5657 df-iota 6483 df-fv 6535 |
| This theorem is used by: mrieqv2d 17774 mreexmrid 17778 mreexexlem3d 17781 mreexexlem4d 17782 mreexexd 17783 mreexdomd 17784 acsdomd 18692 ismgmn0 18779 ecqusaddcl 19369 telgsumfz 20165 isirred 20610 tgclb 23249 alexsublem 24324 cnextcn 24347 ustssel 24486 fmucnd 24571 trcfilu 24573 cfiluweak 24574 ucnextcn 24583 imasdsf1olem 24653 imasf1oxmet 24655 comet 24793 restmetu 24850 wlkp1lem4 30188 wlkp1lem8 30192 1wlkdlem4 30664 eupth2lem3lem1 30762 eupth2lem3lem2 30763 gsumsubg 33540 gsummptfzsplitla 33553 opprqusplusg 33946 opprqus0g 33947 lsssra 34153 lbsdiflsp0 34191 fedgmullem1 34194 mzpcl34 43680 xlimbr 46759 xlimmnfvlem2 46765 xlimpnfvlem2 46769 sectpropdlem 50066 invpropdlem 50068 isopropdlem 50070 cicpropdlem 50079 oppcup3 50239 elxpcbasex1ALT 50279 elxpcbasex2ALT 50281 swapf1 50302 |
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